Home / 9,121.19-12,587.25-4,929.44

Finding the Fourth Proportional to 9,121.19, 12,587.25 and 4,929.44

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Solution

The fourth proportional to 9,121.19, 12,587.25 and 4,929.44 is: 6,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.19 : 12,587.25 = 4,929.44 : x
  2. Step 2: Convert to fraction form
    9,121.19/12,587.25 = 4,929.44/x
  3. Step 3: Cross multiply
    9,121.19x = 12,587.25 × 4,929.44
  4. Step 4: Simplify right side
    9,121.19x = 62,048,143.59
  5. Step 5: Solve for x
    x = 62,048,143.59/9,121.19
  6. Step 6: Final answer
    x = 6,802.64

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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.