Home / 12,865.19-19,288.55-5,841.68

Finding the Fourth Proportional to 12,865.19, 19,288.55 and 5,841.68

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Solution

The fourth proportional to 12,865.19, 19,288.55 and 5,841.68 is: 8,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865.19 : 19,288.55 = 5,841.68 : x
  2. Step 2: Convert to fraction form
    12,865.19/19,288.55 = 5,841.68/x
  3. Step 3: Cross multiply
    12,865.19x = 19,288.55 × 5,841.68
  4. Step 4: Simplify right side
    12,865.19x = 112,677,454.93
  5. Step 5: Solve for x
    x = 112,677,454.93/12,865.19
  6. Step 6: Final answer
    x = 8,758.32

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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.