Home / 10,920.02-15,069.18-6,203.78

Finding the Fourth Proportional to 10,920.02, 15,069.18 and 6,203.78

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Solution

The fourth proportional to 10,920.02, 15,069.18 and 6,203.78 is: 8,560.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.02 : 15,069.18 = 6,203.78 : x
  2. Step 2: Convert to fraction form
    10,920.02/15,069.18 = 6,203.78/x
  3. Step 3: Cross multiply
    10,920.02x = 15,069.18 × 6,203.78
  4. Step 4: Simplify right side
    10,920.02x = 93,485,877.50
  5. Step 5: Solve for x
    x = 93,485,877.50/10,920.02
  6. Step 6: Final answer
    x = 8,560.96

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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.