Home / 13,116.79-19,679.02-4,231.94

Finding the Fourth Proportional to 13,116.79, 19,679.02 and 4,231.94

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Solution

The fourth proportional to 13,116.79, 19,679.02 and 4,231.94 is: 6,349.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.79 : 19,679.02 = 4,231.94 : x
  2. Step 2: Convert to fraction form
    13,116.79/19,679.02 = 4,231.94/x
  3. Step 3: Cross multiply
    13,116.79x = 19,679.02 × 4,231.94
  4. Step 4: Simplify right side
    13,116.79x = 83,280,470.52
  5. Step 5: Solve for x
    x = 83,280,470.52/13,116.79
  6. Step 6: Final answer
    x = 6,349.15

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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.