Home / 14,331.60-19,778.67-8,666.57

Finding the Fourth Proportional to 14,331.60, 19,778.67 and 8,666.57

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Solution

The fourth proportional to 14,331.60, 19,778.67 and 8,666.57 is: 11,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.60 : 19,778.67 = 8,666.57 : x
  2. Step 2: Convert to fraction form
    14,331.60/19,778.67 = 8,666.57/x
  3. Step 3: Cross multiply
    14,331.60x = 19,778.67 × 8,666.57
  4. Step 4: Simplify right side
    14,331.60x = 171,413,129.17
  5. Step 5: Solve for x
    x = 171,413,129.17/14,331.60
  6. Step 6: Final answer
    x = 11,960.50

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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.