Home / 12,849.47-19,264.86-8,679.14

Finding the Fourth Proportional to 12,849.47, 19,264.86 and 8,679.14

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Solution

The fourth proportional to 12,849.47, 19,264.86 and 8,679.14 is: 13,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.47 : 19,264.86 = 8,679.14 : x
  2. Step 2: Convert to fraction form
    12,849.47/19,264.86 = 8,679.14/x
  3. Step 3: Cross multiply
    12,849.47x = 19,264.86 × 8,679.14
  4. Step 4: Simplify right side
    12,849.47x = 167,202,417.02
  5. Step 5: Solve for x
    x = 167,202,417.02/12,849.47
  6. Step 6: Final answer
    x = 13,012.40

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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.