Home / 10,980.12-15,153.42-6,265.80

Finding the Fourth Proportional to 10,980.12, 15,153.42 and 6,265.80

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Solution

The fourth proportional to 10,980.12, 15,153.42 and 6,265.80 is: 8,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.12 : 15,153.42 = 6,265.80 : x
  2. Step 2: Convert to fraction form
    10,980.12/15,153.42 = 6,265.80/x
  3. Step 3: Cross multiply
    10,980.12x = 15,153.42 × 6,265.80
  4. Step 4: Simplify right side
    10,980.12x = 94,948,299.04
  5. Step 5: Solve for x
    x = 94,948,299.04/10,980.12
  6. Step 6: Final answer
    x = 8,647.29

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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.