Home / 9,864.45-13,613.17-5,388.16

Finding the Fourth Proportional to 9,864.45, 13,613.17 and 5,388.16

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Solution

The fourth proportional to 9,864.45, 13,613.17 and 5,388.16 is: 7,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.45 : 13,613.17 = 5,388.16 : x
  2. Step 2: Convert to fraction form
    9,864.45/13,613.17 = 5,388.16/x
  3. Step 3: Cross multiply
    9,864.45x = 13,613.17 × 5,388.16
  4. Step 4: Simplify right side
    9,864.45x = 73,349,938.07
  5. Step 5: Solve for x
    x = 73,349,938.07/9,864.45
  6. Step 6: Final answer
    x = 7,435.79

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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.