Home / 9,121.05-12,587.04-4,929.30

Finding the Fourth Proportional to 9,121.05, 12,587.04 and 4,929.30

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Solution

The fourth proportional to 9,121.05, 12,587.04 and 4,929.30 is: 6,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.05 : 12,587.04 = 4,929.30 : x
  2. Step 2: Convert to fraction form
    9,121.05/12,587.04 = 4,929.30/x
  3. Step 3: Cross multiply
    9,121.05x = 12,587.04 × 4,929.30
  4. Step 4: Simplify right side
    9,121.05x = 62,045,296.27
  5. Step 5: Solve for x
    x = 62,045,296.27/9,121.05
  6. Step 6: Final answer
    x = 6,802.43

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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.