Home / 13,240.96-18,264.50-7,859.85

Finding the Fourth Proportional to 13,240.96, 18,264.50 and 7,859.85

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Solution

The fourth proportional to 13,240.96, 18,264.50 and 7,859.85 is: 10,841.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.96 : 18,264.50 = 7,859.85 : x
  2. Step 2: Convert to fraction form
    13,240.96/18,264.50 = 7,859.85/x
  3. Step 3: Cross multiply
    13,240.96x = 18,264.50 × 7,859.85
  4. Step 4: Simplify right side
    13,240.96x = 143,556,139.00
  5. Step 5: Solve for x
    x = 143,556,139.00/13,240.96
  6. Step 6: Final answer
    x = 10,841.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.