Home / 12,040.80-18,064.02-5,025.40

Finding the Fourth Proportional to 12,040.80, 18,064.02 and 5,025.40

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Solution

The fourth proportional to 12,040.80, 18,064.02 and 5,025.40 is: 7,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.80 : 18,064.02 = 5,025.40 : x
  2. Step 2: Convert to fraction form
    12,040.80/18,064.02 = 5,025.40/x
  3. Step 3: Cross multiply
    12,040.80x = 18,064.02 × 5,025.40
  4. Step 4: Simplify right side
    12,040.80x = 90,778,926.11
  5. Step 5: Solve for x
    x = 90,778,926.11/12,040.80
  6. Step 6: Final answer
    x = 7,539.28

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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.