Home / 13,740.02-20,613.28-10,939.44

Finding the Fourth Proportional to 13,740.02, 20,613.28 and 10,939.44

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Solution

The fourth proportional to 13,740.02, 20,613.28 and 10,939.44 is: 16,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.02 : 20,613.28 = 10,939.44 : x
  2. Step 2: Convert to fraction form
    13,740.02/20,613.28 = 10,939.44/x
  3. Step 3: Cross multiply
    13,740.02x = 20,613.28 × 10,939.44
  4. Step 4: Simplify right side
    13,740.02x = 225,497,810.23
  5. Step 5: Solve for x
    x = 225,497,810.23/13,740.02
  6. Step 6: Final answer
    x = 16,411.75

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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.