Home / 18,419.64-25,419.18-10,036.14

Finding the Fourth Proportional to 18,419.64, 25,419.18 and 10,036.14

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Solution

The fourth proportional to 18,419.64, 25,419.18 and 10,036.14 is: 13,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.64 : 25,419.18 = 10,036.14 : x
  2. Step 2: Convert to fraction form
    18,419.64/25,419.18 = 10,036.14/x
  3. Step 3: Cross multiply
    18,419.64x = 25,419.18 × 10,036.14
  4. Step 4: Simplify right side
    18,419.64x = 255,110,449.17
  5. Step 5: Solve for x
    x = 255,110,449.17/18,419.64
  6. Step 6: Final answer
    x = 13,849.92

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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.