Home / 9,411.47-12,987.93-5,876.73

Finding the Fourth Proportional to 9,411.47, 12,987.93 and 5,876.73

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Solution

The fourth proportional to 9,411.47, 12,987.93 and 5,876.73 is: 8,109.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411.47 : 12,987.93 = 5,876.73 : x
  2. Step 2: Convert to fraction form
    9,411.47/12,987.93 = 5,876.73/x
  3. Step 3: Cross multiply
    9,411.47x = 12,987.93 × 5,876.73
  4. Step 4: Simplify right side
    9,411.47x = 76,326,535.11
  5. Step 5: Solve for x
    x = 76,326,535.11/9,411.47
  6. Step 6: Final answer
    x = 8,109.95

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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.