Home / 15,610.28-21,544.30-8,805.70

Finding the Fourth Proportional to 15,610.28, 21,544.30 and 8,805.70

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Solution

The fourth proportional to 15,610.28, 21,544.30 and 8,805.70 is: 12,153.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.28 : 21,544.30 = 8,805.70 : x
  2. Step 2: Convert to fraction form
    15,610.28/21,544.30 = 8,805.70/x
  3. Step 3: Cross multiply
    15,610.28x = 21,544.30 × 8,805.70
  4. Step 4: Simplify right side
    15,610.28x = 189,712,642.51
  5. Step 5: Solve for x
    x = 189,712,642.51/15,610.28
  6. Step 6: Final answer
    x = 12,153.06

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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.