Home / 15,526.14-21,423.25-8,812.05

Finding the Fourth Proportional to 15,526.14, 21,423.25 and 8,812.05

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Solution

The fourth proportional to 15,526.14, 21,423.25 and 8,812.05 is: 12,159.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.14 : 21,423.25 = 8,812.05 : x
  2. Step 2: Convert to fraction form
    15,526.14/21,423.25 = 8,812.05/x
  3. Step 3: Cross multiply
    15,526.14x = 21,423.25 × 8,812.05
  4. Step 4: Simplify right side
    15,526.14x = 188,782,621.02
  5. Step 5: Solve for x
    x = 188,782,621.02/15,526.14
  6. Step 6: Final answer
    x = 12,159.02

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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.