Home / 7,157.48-9,877.15-4,173.12

Finding the Fourth Proportional to 7,157.48, 9,877.15 and 4,173.12

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Solution

The fourth proportional to 7,157.48, 9,877.15 and 4,173.12 is: 5,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.48 : 9,877.15 = 4,173.12 : x
  2. Step 2: Convert to fraction form
    7,157.48/9,877.15 = 4,173.12/x
  3. Step 3: Cross multiply
    7,157.48x = 9,877.15 × 4,173.12
  4. Step 4: Simplify right side
    7,157.48x = 41,218,521.78
  5. Step 5: Solve for x
    x = 41,218,521.78/7,157.48
  6. Step 6: Final answer
    x = 5,758.80

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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.