Home / 15,029.14-20,740.43-8,656.87

Finding the Fourth Proportional to 15,029.14, 20,740.43 and 8,656.87

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Solution

The fourth proportional to 15,029.14, 20,740.43 and 8,656.87 is: 11,946.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,029.14 : 20,740.43 = 8,656.87 : x
  2. Step 2: Convert to fraction form
    15,029.14/20,740.43 = 8,656.87/x
  3. Step 3: Cross multiply
    15,029.14x = 20,740.43 × 8,656.87
  4. Step 4: Simplify right side
    15,029.14x = 179,547,162.97
  5. Step 5: Solve for x
    x = 179,547,162.97/15,029.14
  6. Step 6: Final answer
    x = 11,946.61

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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.