Home / 8,678.06-13,017.10-2,104.20

Finding the Fourth Proportional to 8,678.06, 13,017.10 and 2,104.20

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Solution

The fourth proportional to 8,678.06, 13,017.10 and 2,104.20 is: 3,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.06 : 13,017.10 = 2,104.20 : x
  2. Step 2: Convert to fraction form
    8,678.06/13,017.10 = 2,104.20/x
  3. Step 3: Cross multiply
    8,678.06x = 13,017.10 × 2,104.20
  4. Step 4: Simplify right side
    8,678.06x = 27,390,581.82
  5. Step 5: Solve for x
    x = 27,390,581.82/8,678.06
  6. Step 6: Final answer
    x = 3,156.30

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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.