Home / 17,612.15-26,417.70-7,078.91

Finding the Fourth Proportional to 17,612.15, 26,417.70 and 7,078.91

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Solution

The fourth proportional to 17,612.15, 26,417.70 and 7,078.91 is: 10,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,612.15 : 26,417.70 = 7,078.91 : x
  2. Step 2: Convert to fraction form
    17,612.15/26,417.70 = 7,078.91/x
  3. Step 3: Cross multiply
    17,612.15x = 26,417.70 × 7,078.91
  4. Step 4: Simplify right side
    17,612.15x = 187,008,388.62
  5. Step 5: Solve for x
    x = 187,008,388.62/17,612.15
  6. Step 6: Final answer
    x = 10,618.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.