Home / 11,437.76-17,156.64-6,240.80

Finding the Fourth Proportional to 11,437.76, 17,156.64 and 6,240.80

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Solution

The fourth proportional to 11,437.76, 17,156.64 and 6,240.80 is: 9,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.76 : 17,156.64 = 6,240.80 : x
  2. Step 2: Convert to fraction form
    11,437.76/17,156.64 = 6,240.80/x
  3. Step 3: Cross multiply
    11,437.76x = 17,156.64 × 6,240.80
  4. Step 4: Simplify right side
    11,437.76x = 107,071,158.91
  5. Step 5: Solve for x
    x = 107,071,158.91/11,437.76
  6. Step 6: Final answer
    x = 9,361.20

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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.