Home / 13,127.55-19,690.97-4,242.87

Finding the Fourth Proportional to 13,127.55, 19,690.97 and 4,242.87

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Solution

The fourth proportional to 13,127.55, 19,690.97 and 4,242.87 is: 6,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.55 : 19,690.97 = 4,242.87 : x
  2. Step 2: Convert to fraction form
    13,127.55/19,690.97 = 4,242.87/x
  3. Step 3: Cross multiply
    13,127.55x = 19,690.97 × 4,242.87
  4. Step 4: Simplify right side
    13,127.55x = 83,546,204.67
  5. Step 5: Solve for x
    x = 83,546,204.67/13,127.55
  6. Step 6: Final answer
    x = 6,364.19

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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.