Home / 15,527.71-21,442.46-9,864.28

Finding the Fourth Proportional to 15,527.71, 21,442.46 and 9,864.28

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Solution

The fourth proportional to 15,527.71, 21,442.46 and 9,864.28 is: 13,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.71 : 21,442.46 = 9,864.28 : x
  2. Step 2: Convert to fraction form
    15,527.71/21,442.46 = 9,864.28/x
  3. Step 3: Cross multiply
    15,527.71x = 21,442.46 × 9,864.28
  4. Step 4: Simplify right side
    15,527.71x = 211,514,272.80
  5. Step 5: Solve for x
    x = 211,514,272.80/15,527.71
  6. Step 6: Final answer
    x = 13,621.73

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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.