Home / 15,040.02-20,770.65-12,700.74

Finding the Fourth Proportional to 15,040.02, 20,770.65 and 12,700.74

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Solution

The fourth proportional to 15,040.02, 20,770.65 and 12,700.74 is: 17,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.02 : 20,770.65 = 12,700.74 : x
  2. Step 2: Convert to fraction form
    15,040.02/20,770.65 = 12,700.74/x
  3. Step 3: Cross multiply
    15,040.02x = 20,770.65 × 12,700.74
  4. Step 4: Simplify right side
    15,040.02x = 263,802,625.28
  5. Step 5: Solve for x
    x = 263,802,625.28/15,040.02
  6. Step 6: Final answer
    x = 17,540.04

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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.