Home / 8,678.95-13,019.18-2,439.01

Finding the Fourth Proportional to 8,678.95, 13,019.18 and 2,439.01

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Solution

The fourth proportional to 8,678.95, 13,019.18 and 2,439.01 is: 3,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.95 : 13,019.18 = 2,439.01 : x
  2. Step 2: Convert to fraction form
    8,678.95/13,019.18 = 2,439.01/x
  3. Step 3: Cross multiply
    8,678.95x = 13,019.18 × 2,439.01
  4. Step 4: Simplify right side
    8,678.95x = 31,753,928.01
  5. Step 5: Solve for x
    x = 31,753,928.01/8,678.95
  6. Step 6: Final answer
    x = 3,658.73

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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.