Home / 9,938.45-13,715.31-5,462.32

Finding the Fourth Proportional to 9,938.45, 13,715.31 and 5,462.32

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Solution

The fourth proportional to 9,938.45, 13,715.31 and 5,462.32 is: 7,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.45 : 13,715.31 = 5,462.32 : x
  2. Step 2: Convert to fraction form
    9,938.45/13,715.31 = 5,462.32/x
  3. Step 3: Cross multiply
    9,938.45x = 13,715.31 × 5,462.32
  4. Step 4: Simplify right side
    9,938.45x = 74,917,357.20
  5. Step 5: Solve for x
    x = 74,917,357.20/9,938.45
  6. Step 6: Final answer
    x = 7,538.13

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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.