Home / 18,686.32-25,788.68-10,730.10

Finding the Fourth Proportional to 18,686.32, 25,788.68 and 10,730.10

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Solution

The fourth proportional to 18,686.32, 25,788.68 and 10,730.10 is: 14,808.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.32 : 25,788.68 = 10,730.10 : x
  2. Step 2: Convert to fraction form
    18,686.32/25,788.68 = 10,730.10/x
  3. Step 3: Cross multiply
    18,686.32x = 25,788.68 × 10,730.10
  4. Step 4: Simplify right side
    18,686.32x = 276,715,115.27
  5. Step 5: Solve for x
    x = 276,715,115.27/18,686.32
  6. Step 6: Final answer
    x = 14,808.43

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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.