Home / 11,367.84-15,686.55-6,331.74

Finding the Fourth Proportional to 11,367.84, 15,686.55 and 6,331.74

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Solution

The fourth proportional to 11,367.84, 15,686.55 and 6,331.74 is: 8,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.84 : 15,686.55 = 6,331.74 : x
  2. Step 2: Convert to fraction form
    11,367.84/15,686.55 = 6,331.74/x
  3. Step 3: Cross multiply
    11,367.84x = 15,686.55 × 6,331.74
  4. Step 4: Simplify right side
    11,367.84x = 99,323,156.10
  5. Step 5: Solve for x
    x = 99,323,156.10/11,367.84
  6. Step 6: Final answer
    x = 8,737.21

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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.