Home / 9,864.66-13,612.64-5,387.52

Finding the Fourth Proportional to 9,864.66, 13,612.64 and 5,387.52

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Solution

The fourth proportional to 9,864.66, 13,612.64 and 5,387.52 is: 7,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.66 : 13,612.64 = 5,387.52 : x
  2. Step 2: Convert to fraction form
    9,864.66/13,612.64 = 5,387.52/x
  3. Step 3: Cross multiply
    9,864.66x = 13,612.64 × 5,387.52
  4. Step 4: Simplify right side
    9,864.66x = 73,338,370.25
  5. Step 5: Solve for x
    x = 73,338,370.25/9,864.66
  6. Step 6: Final answer
    x = 7,434.45

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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.