Home / 10,157.92-15,236.72-7,402.08

Finding the Fourth Proportional to 10,157.92, 15,236.72 and 7,402.08

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Solution

The fourth proportional to 10,157.92, 15,236.72 and 7,402.08 is: 11,103.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.92 : 15,236.72 = 7,402.08 : x
  2. Step 2: Convert to fraction form
    10,157.92/15,236.72 = 7,402.08/x
  3. Step 3: Cross multiply
    10,157.92x = 15,236.72 × 7,402.08
  4. Step 4: Simplify right side
    10,157.92x = 112,783,420.38
  5. Step 5: Solve for x
    x = 112,783,420.38/10,157.92
  6. Step 6: Final answer
    x = 11,103.00

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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.