Home / 14,152.50-19,531.26-7,866.90

Finding the Fourth Proportional to 14,152.50, 19,531.26 and 7,866.90

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Solution

The fourth proportional to 14,152.50, 19,531.26 and 7,866.90 is: 10,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.50 : 19,531.26 = 7,866.90 : x
  2. Step 2: Convert to fraction form
    14,152.50/19,531.26 = 7,866.90/x
  3. Step 3: Cross multiply
    14,152.50x = 19,531.26 × 7,866.90
  4. Step 4: Simplify right side
    14,152.50x = 153,650,469.29
  5. Step 5: Solve for x
    x = 153,650,469.29/14,152.50
  6. Step 6: Final answer
    x = 10,856.77

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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.