Home / 15,472.80-23,216.40-8,085.60

Finding the Fourth Proportional to 15,472.80, 23,216.40 and 8,085.60

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Solution

The fourth proportional to 15,472.80, 23,216.40 and 8,085.60 is: 12,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.80 : 23,216.40 = 8,085.60 : x
  2. Step 2: Convert to fraction form
    15,472.80/23,216.40 = 8,085.60/x
  3. Step 3: Cross multiply
    15,472.80x = 23,216.40 × 8,085.60
  4. Step 4: Simplify right side
    15,472.80x = 187,718,523.84
  5. Step 5: Solve for x
    x = 187,718,523.84/15,472.80
  6. Step 6: Final answer
    x = 12,132.16

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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.