Home / 7,161.06-10,726.98-4,385.40

Finding the Fourth Proportional to 7,161.06, 10,726.98 and 4,385.40

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Solution

The fourth proportional to 7,161.06, 10,726.98 and 4,385.40 is: 6,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.06 : 10,726.98 = 4,385.40 : x
  2. Step 2: Convert to fraction form
    7,161.06/10,726.98 = 4,385.40/x
  3. Step 3: Cross multiply
    7,161.06x = 10,726.98 × 4,385.40
  4. Step 4: Simplify right side
    7,161.06x = 47,042,098.09
  5. Step 5: Solve for x
    x = 47,042,098.09/7,161.06
  6. Step 6: Final answer
    x = 6,569.15

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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.