Home / 15,274.40-21,079.97-8,559.93

Finding the Fourth Proportional to 15,274.40, 21,079.97 and 8,559.93

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Solution

The fourth proportional to 15,274.40, 21,079.97 and 8,559.93 is: 11,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.40 : 21,079.97 = 8,559.93 : x
  2. Step 2: Convert to fraction form
    15,274.40/21,079.97 = 8,559.93/x
  3. Step 3: Cross multiply
    15,274.40x = 21,079.97 × 8,559.93
  4. Step 4: Simplify right side
    15,274.40x = 180,443,024.80
  5. Step 5: Solve for x
    x = 180,443,024.80/15,274.40
  6. Step 6: Final answer
    x = 11,813.43

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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.