Home / 9,166.16-12,649.38-5,389.04

Finding the Fourth Proportional to 9,166.16, 12,649.38 and 5,389.04

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Solution

The fourth proportional to 9,166.16, 12,649.38 and 5,389.04 is: 7,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166.16 : 12,649.38 = 5,389.04 : x
  2. Step 2: Convert to fraction form
    9,166.16/12,649.38 = 5,389.04/x
  3. Step 3: Cross multiply
    9,166.16x = 12,649.38 × 5,389.04
  4. Step 4: Simplify right side
    9,166.16x = 68,168,014.80
  5. Step 5: Solve for x
    x = 68,168,014.80/9,166.16
  6. Step 6: Final answer
    x = 7,436.92

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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.