Home / 10,334.02-15,480.20-4,779.70

Finding the Fourth Proportional to 10,334.02, 15,480.20 and 4,779.70

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Solution

The fourth proportional to 10,334.02, 15,480.20 and 4,779.70 is: 7,159.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,334.02 : 15,480.20 = 4,779.70 : x
  2. Step 2: Convert to fraction form
    10,334.02/15,480.20 = 4,779.70/x
  3. Step 3: Cross multiply
    10,334.02x = 15,480.20 × 4,779.70
  4. Step 4: Simplify right side
    10,334.02x = 73,990,711.94
  5. Step 5: Solve for x
    x = 73,990,711.94/10,334.02
  6. Step 6: Final answer
    x = 7,159.92

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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.