Home / 9,864.59-13,612.92-5,388.36

Finding the Fourth Proportional to 9,864.59, 13,612.92 and 5,388.36

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Solution

The fourth proportional to 9,864.59, 13,612.92 and 5,388.36 is: 7,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.59 : 13,612.92 = 5,388.36 : x
  2. Step 2: Convert to fraction form
    9,864.59/13,612.92 = 5,388.36/x
  3. Step 3: Cross multiply
    9,864.59x = 13,612.92 × 5,388.36
  4. Step 4: Simplify right side
    9,864.59x = 73,351,313.61
  5. Step 5: Solve for x
    x = 73,351,313.61/9,864.59
  6. Step 6: Final answer
    x = 7,435.82

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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.