Home / 15,726.85-21,700.57-9,011.19

Finding the Fourth Proportional to 15,726.85, 21,700.57 and 9,011.19

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Solution

The fourth proportional to 15,726.85, 21,700.57 and 9,011.19 is: 12,434.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.85 : 21,700.57 = 9,011.19 : x
  2. Step 2: Convert to fraction form
    15,726.85/21,700.57 = 9,011.19/x
  3. Step 3: Cross multiply
    15,726.85x = 21,700.57 × 9,011.19
  4. Step 4: Simplify right side
    15,726.85x = 195,547,959.38
  5. Step 5: Solve for x
    x = 195,547,959.38/15,726.85
  6. Step 6: Final answer
    x = 12,434.02

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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.