Home / 15,288.29-21,088.89-9,614.05

Finding the Fourth Proportional to 15,288.29, 21,088.89 and 9,614.05

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Solution

The fourth proportional to 15,288.29, 21,088.89 and 9,614.05 is: 13,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.29 : 21,088.89 = 9,614.05 : x
  2. Step 2: Convert to fraction form
    15,288.29/21,088.89 = 9,614.05/x
  3. Step 3: Cross multiply
    15,288.29x = 21,088.89 × 9,614.05
  4. Step 4: Simplify right side
    15,288.29x = 202,749,642.90
  5. Step 5: Solve for x
    x = 202,749,642.90/15,288.29
  6. Step 6: Final answer
    x = 13,261.76

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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.