Home / 15,605.20-23,381.88-10,978.48

Finding the Fourth Proportional to 15,605.20, 23,381.88 and 10,978.48

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Solution

The fourth proportional to 15,605.20, 23,381.88 and 10,978.48 is: 16,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.20 : 23,381.88 = 10,978.48 : x
  2. Step 2: Convert to fraction form
    15,605.20/23,381.88 = 10,978.48/x
  3. Step 3: Cross multiply
    15,605.20x = 23,381.88 × 10,978.48
  4. Step 4: Simplify right side
    15,605.20x = 256,697,501.94
  5. Step 5: Solve for x
    x = 256,697,501.94/15,605.20
  6. Step 6: Final answer
    x = 16,449.48

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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.