Home / 14,761.50-20,370.87-9,172.50

Finding the Fourth Proportional to 14,761.50, 20,370.87 and 9,172.50

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Solution

The fourth proportional to 14,761.50, 20,370.87 and 9,172.50 is: 12,658.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,761.50 : 20,370.87 = 9,172.50 : x
  2. Step 2: Convert to fraction form
    14,761.50/20,370.87 = 9,172.50/x
  3. Step 3: Cross multiply
    14,761.50x = 20,370.87 × 9,172.50
  4. Step 4: Simplify right side
    14,761.50x = 186,851,805.08
  5. Step 5: Solve for x
    x = 186,851,805.08/14,761.50
  6. Step 6: Final answer
    x = 12,658.05

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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.