Home / 15,260.63-21,057.89-8,888.61

Finding the Fourth Proportional to 15,260.63, 21,057.89 and 8,888.61

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Solution

The fourth proportional to 15,260.63, 21,057.89 and 8,888.61 is: 12,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.63 : 21,057.89 = 8,888.61 : x
  2. Step 2: Convert to fraction form
    15,260.63/21,057.89 = 8,888.61/x
  3. Step 3: Cross multiply
    15,260.63x = 21,057.89 × 8,888.61
  4. Step 4: Simplify right side
    15,260.63x = 187,175,406.16
  5. Step 5: Solve for x
    x = 187,175,406.16/15,260.63
  6. Step 6: Final answer
    x = 12,265.25

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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.