Home / 9,864.02-13,612.32-5,387.76

Finding the Fourth Proportional to 9,864.02, 13,612.32 and 5,387.76

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Solution

The fourth proportional to 9,864.02, 13,612.32 and 5,387.76 is: 7,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.02 : 13,612.32 = 5,387.76 : x
  2. Step 2: Convert to fraction form
    9,864.02/13,612.32 = 5,387.76/x
  3. Step 3: Cross multiply
    9,864.02x = 13,612.32 × 5,387.76
  4. Step 4: Simplify right side
    9,864.02x = 73,339,913.20
  5. Step 5: Solve for x
    x = 73,339,913.20/9,864.02
  6. Step 6: Final answer
    x = 7,435.10

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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.