Home / 11,639.85-17,463.43-7,484.55

Finding the Fourth Proportional to 11,639.85, 17,463.43 and 7,484.55

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Solution

The fourth proportional to 11,639.85, 17,463.43 and 7,484.55 is: 11,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.85 : 17,463.43 = 7,484.55 : x
  2. Step 2: Convert to fraction form
    11,639.85/17,463.43 = 7,484.55/x
  3. Step 3: Cross multiply
    11,639.85x = 17,463.43 × 7,484.55
  4. Step 4: Simplify right side
    11,639.85x = 130,705,985.17
  5. Step 5: Solve for x
    x = 130,705,985.17/11,639.85
  6. Step 6: Final answer
    x = 11,229.18

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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.