Home / 13,312.91-19,934.10-8,040.89

Finding the Fourth Proportional to 13,312.91, 19,934.10 and 8,040.89

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Solution

The fourth proportional to 13,312.91, 19,934.10 and 8,040.89 is: 12,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.91 : 19,934.10 = 8,040.89 : x
  2. Step 2: Convert to fraction form
    13,312.91/19,934.10 = 8,040.89/x
  3. Step 3: Cross multiply
    13,312.91x = 19,934.10 × 8,040.89
  4. Step 4: Simplify right side
    13,312.91x = 160,287,805.68
  5. Step 5: Solve for x
    x = 160,287,805.68/13,312.91
  6. Step 6: Final answer
    x = 12,040.03

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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.