Home / 15,463.28-21,339.16-8,748.80

Finding the Fourth Proportional to 15,463.28, 21,339.16 and 8,748.80

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Solution

The fourth proportional to 15,463.28, 21,339.16 and 8,748.80 is: 12,073.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,463.28 : 21,339.16 = 8,748.80 : x
  2. Step 2: Convert to fraction form
    15,463.28/21,339.16 = 8,748.80/x
  3. Step 3: Cross multiply
    15,463.28x = 21,339.16 × 8,748.80
  4. Step 4: Simplify right side
    15,463.28x = 186,692,043.01
  5. Step 5: Solve for x
    x = 186,692,043.01/15,463.28
  6. Step 6: Final answer
    x = 12,073.25

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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.