Home / 13,079.32-19,607.92-5,678.18

Finding the Fourth Proportional to 13,079.32, 19,607.92 and 5,678.18

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Solution

The fourth proportional to 13,079.32, 19,607.92 and 5,678.18 is: 8,512.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.32 : 19,607.92 = 5,678.18 : x
  2. Step 2: Convert to fraction form
    13,079.32/19,607.92 = 5,678.18/x
  3. Step 3: Cross multiply
    13,079.32x = 19,607.92 × 5,678.18
  4. Step 4: Simplify right side
    13,079.32x = 111,337,299.19
  5. Step 5: Solve for x
    x = 111,337,299.19/13,079.32
  6. Step 6: Final answer
    x = 8,512.47

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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.