Home / 13,126.29-19,693.40-4,691.69

Finding the Fourth Proportional to 13,126.29, 19,693.40 and 4,691.69

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Solution

The fourth proportional to 13,126.29, 19,693.40 and 4,691.69 is: 7,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.29 : 19,693.40 = 4,691.69 : x
  2. Step 2: Convert to fraction form
    13,126.29/19,693.40 = 4,691.69/x
  3. Step 3: Cross multiply
    13,126.29x = 19,693.40 × 4,691.69
  4. Step 4: Simplify right side
    13,126.29x = 92,395,327.85
  5. Step 5: Solve for x
    x = 92,395,327.85/13,126.29
  6. Step 6: Final answer
    x = 7,038.95

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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.