Home / 9,337.53-12,885.03-5,145.78

Finding the Fourth Proportional to 9,337.53, 12,885.03 and 5,145.78

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Solution

The fourth proportional to 9,337.53, 12,885.03 and 5,145.78 is: 7,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,337.53 : 12,885.03 = 5,145.78 : x
  2. Step 2: Convert to fraction form
    9,337.53/12,885.03 = 5,145.78/x
  3. Step 3: Cross multiply
    9,337.53x = 12,885.03 × 5,145.78
  4. Step 4: Simplify right side
    9,337.53x = 66,303,529.67
  5. Step 5: Solve for x
    x = 66,303,529.67/9,337.53
  6. Step 6: Final answer
    x = 7,100.76

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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.