Home / 18,418.60-25,417.64-10,035.12

Finding the Fourth Proportional to 18,418.60, 25,417.64 and 10,035.12

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Solution

The fourth proportional to 18,418.60, 25,417.64 and 10,035.12 is: 13,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.60 : 25,417.64 = 10,035.12 : x
  2. Step 2: Convert to fraction form
    18,418.60/25,417.64 = 10,035.12/x
  3. Step 3: Cross multiply
    18,418.60x = 25,417.64 × 10,035.12
  4. Step 4: Simplify right side
    18,418.60x = 255,069,067.52
  5. Step 5: Solve for x
    x = 255,069,067.52/18,418.60
  6. Step 6: Final answer
    x = 13,848.45

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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.