Home / 14,943.50-20,615.10-9,640.02

Finding the Fourth Proportional to 14,943.50, 20,615.10 and 9,640.02

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Solution

The fourth proportional to 14,943.50, 20,615.10 and 9,640.02 is: 13,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.50 : 20,615.10 = 9,640.02 : x
  2. Step 2: Convert to fraction form
    14,943.50/20,615.10 = 9,640.02/x
  3. Step 3: Cross multiply
    14,943.50x = 20,615.10 × 9,640.02
  4. Step 4: Simplify right side
    14,943.50x = 198,729,976.30
  5. Step 5: Solve for x
    x = 198,729,976.30/14,943.50
  6. Step 6: Final answer
    x = 13,298.76

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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.