Home / 9,114.60-13,661.10-4,729.80

Finding the Fourth Proportional to 9,114.60, 13,661.10 and 4,729.80

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Solution

The fourth proportional to 9,114.60, 13,661.10 and 4,729.80 is: 7,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.60 : 13,661.10 = 4,729.80 : x
  2. Step 2: Convert to fraction form
    9,114.60/13,661.10 = 4,729.80/x
  3. Step 3: Cross multiply
    9,114.60x = 13,661.10 × 4,729.80
  4. Step 4: Simplify right side
    9,114.60x = 64,614,270.78
  5. Step 5: Solve for x
    x = 64,614,270.78/9,114.60
  6. Step 6: Final answer
    x = 7,089.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.