Home / 15,526.32-21,426.75-8,812.23

Finding the Fourth Proportional to 15,526.32, 21,426.75 and 8,812.23

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Solution

The fourth proportional to 15,526.32, 21,426.75 and 8,812.23 is: 12,161.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.32 : 21,426.75 = 8,812.23 : x
  2. Step 2: Convert to fraction form
    15,526.32/21,426.75 = 8,812.23/x
  3. Step 3: Cross multiply
    15,526.32x = 21,426.75 × 8,812.23
  4. Step 4: Simplify right side
    15,526.32x = 188,817,449.15
  5. Step 5: Solve for x
    x = 188,817,449.15/15,526.32
  6. Step 6: Final answer
    x = 12,161.12

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Half scale
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Double scale
Find fourth proportional to 15,527.32, 21,428.13 and 8,813.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.