Home / 9,376.30-12,938.90-5,397.56

Finding the Fourth Proportional to 9,376.30, 12,938.90 and 5,397.56

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Solution

The fourth proportional to 9,376.30, 12,938.90 and 5,397.56 is: 7,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.30 : 12,938.90 = 5,397.56 : x
  2. Step 2: Convert to fraction form
    9,376.30/12,938.90 = 5,397.56/x
  3. Step 3: Cross multiply
    9,376.30x = 12,938.90 × 5,397.56
  4. Step 4: Simplify right side
    9,376.30x = 69,838,489.08
  5. Step 5: Solve for x
    x = 69,838,489.08/9,376.30
  6. Step 6: Final answer
    x = 7,448.41

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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.