Home / 15,568.28-21,484.70-8,854.87

Finding the Fourth Proportional to 15,568.28, 21,484.70 and 8,854.87

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Solution

The fourth proportional to 15,568.28, 21,484.70 and 8,854.87 is: 12,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,568.28 : 21,484.70 = 8,854.87 : x
  2. Step 2: Convert to fraction form
    15,568.28/21,484.70 = 8,854.87/x
  3. Step 3: Cross multiply
    15,568.28x = 21,484.70 × 8,854.87
  4. Step 4: Simplify right side
    15,568.28x = 190,244,203.35
  5. Step 5: Solve for x
    x = 190,244,203.35/15,568.28
  6. Step 6: Final answer
    x = 12,219.99

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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.