Home / 15,426.74-21,288.99-8,353.16

Finding the Fourth Proportional to 15,426.74, 21,288.99 and 8,353.16

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Solution

The fourth proportional to 15,426.74, 21,288.99 and 8,353.16 is: 11,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.74 : 21,288.99 = 8,353.16 : x
  2. Step 2: Convert to fraction form
    15,426.74/21,288.99 = 8,353.16/x
  3. Step 3: Cross multiply
    15,426.74x = 21,288.99 × 8,353.16
  4. Step 4: Simplify right side
    15,426.74x = 177,830,233.26
  5. Step 5: Solve for x
    x = 177,830,233.26/15,426.74
  6. Step 6: Final answer
    x = 11,527.41

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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.