Home / 8,897.04-12,278.96-5,171.04

Finding the Fourth Proportional to 8,897.04, 12,278.96 and 5,171.04

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Solution

The fourth proportional to 8,897.04, 12,278.96 and 5,171.04 is: 7,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.04 : 12,278.96 = 5,171.04 : x
  2. Step 2: Convert to fraction form
    8,897.04/12,278.96 = 5,171.04/x
  3. Step 3: Cross multiply
    8,897.04x = 12,278.96 × 5,171.04
  4. Step 4: Simplify right side
    8,897.04x = 63,494,993.32
  5. Step 5: Solve for x
    x = 63,494,993.32/8,897.04
  6. Step 6: Final answer
    x = 7,136.64

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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.