Home / 13,458.56-18,590.40-9,259.52

Finding the Fourth Proportional to 13,458.56, 18,590.40 and 9,259.52

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Solution

The fourth proportional to 13,458.56, 18,590.40 and 9,259.52 is: 12,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.56 : 18,590.40 = 9,259.52 : x
  2. Step 2: Convert to fraction form
    13,458.56/18,590.40 = 9,259.52/x
  3. Step 3: Cross multiply
    13,458.56x = 18,590.40 × 9,259.52
  4. Step 4: Simplify right side
    13,458.56x = 172,138,180.61
  5. Step 5: Solve for x
    x = 172,138,180.61/13,458.56
  6. Step 6: Final answer
    x = 12,790.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.