Home / 9,121.41-12,587.54-4,929.66

Finding the Fourth Proportional to 9,121.41, 12,587.54 and 4,929.66

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Solution

The fourth proportional to 9,121.41, 12,587.54 and 4,929.66 is: 6,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.41 : 12,587.54 = 4,929.66 : x
  2. Step 2: Convert to fraction form
    9,121.41/12,587.54 = 4,929.66/x
  3. Step 3: Cross multiply
    9,121.41x = 12,587.54 × 4,929.66
  4. Step 4: Simplify right side
    9,121.41x = 62,052,304.76
  5. Step 5: Solve for x
    x = 62,052,304.76/9,121.41
  6. Step 6: Final answer
    x = 6,802.93

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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.