Home / 18,686.89-25,788.45-10,730.53

Finding the Fourth Proportional to 18,686.89, 25,788.45 and 10,730.53

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Solution

The fourth proportional to 18,686.89, 25,788.45 and 10,730.53 is: 14,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.89 : 25,788.45 = 10,730.53 : x
  2. Step 2: Convert to fraction form
    18,686.89/25,788.45 = 10,730.53/x
  3. Step 3: Cross multiply
    18,686.89x = 25,788.45 × 10,730.53
  4. Step 4: Simplify right side
    18,686.89x = 276,723,736.38
  5. Step 5: Solve for x
    x = 276,723,736.38/18,686.89
  6. Step 6: Final answer
    x = 14,808.44

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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.