Home / 7,438.13-11,157.33-3,541.76

Finding the Fourth Proportional to 7,438.13, 11,157.33 and 3,541.76

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Solution

The fourth proportional to 7,438.13, 11,157.33 and 3,541.76 is: 5,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.13 : 11,157.33 = 3,541.76 : x
  2. Step 2: Convert to fraction form
    7,438.13/11,157.33 = 3,541.76/x
  3. Step 3: Cross multiply
    7,438.13x = 11,157.33 × 3,541.76
  4. Step 4: Simplify right side
    7,438.13x = 39,516,585.10
  5. Step 5: Solve for x
    x = 39,516,585.10/7,438.13
  6. Step 6: Final answer
    x = 5,312.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.