Home / 18,218.60-25,140.80-10,152.68

Finding the Fourth Proportional to 18,218.60, 25,140.80 and 10,152.68

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Solution

The fourth proportional to 18,218.60, 25,140.80 and 10,152.68 is: 14,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.60 : 25,140.80 = 10,152.68 : x
  2. Step 2: Convert to fraction form
    18,218.60/25,140.80 = 10,152.68/x
  3. Step 3: Cross multiply
    18,218.60x = 25,140.80 × 10,152.68
  4. Step 4: Simplify right side
    18,218.60x = 255,246,585.58
  5. Step 5: Solve for x
    x = 255,246,585.58/18,218.60
  6. Step 6: Final answer
    x = 14,010.22

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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.