Home / 15,568.30-21,484.29-8,853.76

Finding the Fourth Proportional to 15,568.30, 21,484.29 and 8,853.76

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Solution

The fourth proportional to 15,568.30, 21,484.29 and 8,853.76 is: 12,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,568.30 : 21,484.29 = 8,853.76 : x
  2. Step 2: Convert to fraction form
    15,568.30/21,484.29 = 8,853.76/x
  3. Step 3: Cross multiply
    15,568.30x = 21,484.29 × 8,853.76
  4. Step 4: Simplify right side
    15,568.30x = 190,216,747.43
  5. Step 5: Solve for x
    x = 190,216,747.43/15,568.30
  6. Step 6: Final answer
    x = 12,218.21

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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.