Home / 15,339.60-23,009.40-12,879.27

Finding the Fourth Proportional to 15,339.60, 23,009.40 and 12,879.27

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Solution

The fourth proportional to 15,339.60, 23,009.40 and 12,879.27 is: 19,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.60 : 23,009.40 = 12,879.27 : x
  2. Step 2: Convert to fraction form
    15,339.60/23,009.40 = 12,879.27/x
  3. Step 3: Cross multiply
    15,339.60x = 23,009.40 × 12,879.27
  4. Step 4: Simplify right side
    15,339.60x = 296,344,275.14
  5. Step 5: Solve for x
    x = 296,344,275.14/15,339.60
  6. Step 6: Final answer
    x = 19,318.91

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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.