Home / 15,260.15-21,057.57-8,886.47

Finding the Fourth Proportional to 15,260.15, 21,057.57 and 8,886.47

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Solution

The fourth proportional to 15,260.15, 21,057.57 and 8,886.47 is: 12,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.15 : 21,057.57 = 8,886.47 : x
  2. Step 2: Convert to fraction form
    15,260.15/21,057.57 = 8,886.47/x
  3. Step 3: Cross multiply
    15,260.15x = 21,057.57 × 8,886.47
  4. Step 4: Simplify right side
    15,260.15x = 187,127,358.79
  5. Step 5: Solve for x
    x = 187,127,358.79/15,260.15
  6. Step 6: Final answer
    x = 12,262.49

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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.