Home / 9,429.90-14,135.58-4,167.78

Finding the Fourth Proportional to 9,429.90, 14,135.58 and 4,167.78

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Solution

The fourth proportional to 9,429.90, 14,135.58 and 4,167.78 is: 6,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,429.90 : 14,135.58 = 4,167.78 : x
  2. Step 2: Convert to fraction form
    9,429.90/14,135.58 = 4,167.78/x
  3. Step 3: Cross multiply
    9,429.90x = 14,135.58 × 4,167.78
  4. Step 4: Simplify right side
    9,429.90x = 58,913,987.61
  5. Step 5: Solve for x
    x = 58,913,987.61/9,429.90
  6. Step 6: Final answer
    x = 6,247.57

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1.5x scale

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.