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Finding the Fourth Proportional to 18,127, 25,015.32 and 10,578.52

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Solution

The fourth proportional to 18,127, 25,015.32 and 10,578.52 is: 14,598.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127 : 25,015.32 = 10,578.52 : x
  2. Step 2: Convert to fraction form
    18,127/25,015.32 = 10,578.52/x
  3. Step 3: Cross multiply
    18,127x = 25,015.32 × 10,578.52
  4. Step 4: Simplify right side
    18,127x = 264,625,062.93
  5. Step 5: Solve for x
    x = 264,625,062.93/18,127
  6. Step 6: Final answer
    x = 14,598.39

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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.