Home / 8,678.20-12,954.17-8,070.52

Finding the Fourth Proportional to 8,678.20, 12,954.17 and 8,070.52

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Solution

The fourth proportional to 8,678.20, 12,954.17 and 8,070.52 is: 12,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.20 : 12,954.17 = 8,070.52 : x
  2. Step 2: Convert to fraction form
    8,678.20/12,954.17 = 8,070.52/x
  3. Step 3: Cross multiply
    8,678.20x = 12,954.17 × 8,070.52
  4. Step 4: Simplify right side
    8,678.20x = 104,546,888.07
  5. Step 5: Solve for x
    x = 104,546,888.07/8,678.20
  6. Step 6: Final answer
    x = 12,047.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.