Home / 9,337.56-12,885.84-5,145.78

Finding the Fourth Proportional to 9,337.56, 12,885.84 and 5,145.78

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Solution

The fourth proportional to 9,337.56, 12,885.84 and 5,145.78 is: 7,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,337.56 : 12,885.84 = 5,145.78 : x
  2. Step 2: Convert to fraction form
    9,337.56/12,885.84 = 5,145.78/x
  3. Step 3: Cross multiply
    9,337.56x = 12,885.84 × 5,145.78
  4. Step 4: Simplify right side
    9,337.56x = 66,307,697.76
  5. Step 5: Solve for x
    x = 66,307,697.76/9,337.56
  6. Step 6: Final answer
    x = 7,101.18

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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.