Home / 12,877.18-19,280.64-9,747.70

Finding the Fourth Proportional to 12,877.18, 19,280.64 and 9,747.70

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Solution

The fourth proportional to 12,877.18, 19,280.64 and 9,747.70 is: 14,594.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.18 : 19,280.64 = 9,747.70 : x
  2. Step 2: Convert to fraction form
    12,877.18/19,280.64 = 9,747.70/x
  3. Step 3: Cross multiply
    12,877.18x = 19,280.64 × 9,747.70
  4. Step 4: Simplify right side
    12,877.18x = 187,941,894.53
  5. Step 5: Solve for x
    x = 187,941,894.53/12,877.18
  6. Step 6: Final answer
    x = 14,594.96

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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.