Home / 9,938.71-13,715.58-5,462.87

Finding the Fourth Proportional to 9,938.71, 13,715.58 and 5,462.87

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Solution

The fourth proportional to 9,938.71, 13,715.58 and 5,462.87 is: 7,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.71 : 13,715.58 = 5,462.87 : x
  2. Step 2: Convert to fraction form
    9,938.71/13,715.58 = 5,462.87/x
  3. Step 3: Cross multiply
    9,938.71x = 13,715.58 × 5,462.87
  4. Step 4: Simplify right side
    9,938.71x = 74,926,430.51
  5. Step 5: Solve for x
    x = 74,926,430.51/9,938.71
  6. Step 6: Final answer
    x = 7,538.85

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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.