Home / 18,582.86-25,638.12-10,515.38

Finding the Fourth Proportional to 18,582.86, 25,638.12 and 10,515.38

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Solution

The fourth proportional to 18,582.86, 25,638.12 and 10,515.38 is: 14,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,582.86 : 25,638.12 = 10,515.38 : x
  2. Step 2: Convert to fraction form
    18,582.86/25,638.12 = 10,515.38/x
  3. Step 3: Cross multiply
    18,582.86x = 25,638.12 × 10,515.38
  4. Step 4: Simplify right side
    18,582.86x = 269,594,446.10
  5. Step 5: Solve for x
    x = 269,594,446.10/18,582.86
  6. Step 6: Final answer
    x = 14,507.70

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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.