Home / 9,418.90-14,127.66-3,870.74

Finding the Fourth Proportional to 9,418.90, 14,127.66 and 3,870.74

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Solution

The fourth proportional to 9,418.90, 14,127.66 and 3,870.74 is: 5,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.90 : 14,127.66 = 3,870.74 : x
  2. Step 2: Convert to fraction form
    9,418.90/14,127.66 = 3,870.74/x
  3. Step 3: Cross multiply
    9,418.90x = 14,127.66 × 3,870.74
  4. Step 4: Simplify right side
    9,418.90x = 54,684,498.67
  5. Step 5: Solve for x
    x = 54,684,498.67/9,418.90
  6. Step 6: Final answer
    x = 5,805.83

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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.