Home / 15,126.66-20,878.29-8,842.68

Finding the Fourth Proportional to 15,126.66, 20,878.29 and 8,842.68

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Solution

The fourth proportional to 15,126.66, 20,878.29 and 8,842.68 is: 12,204.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.66 : 20,878.29 = 8,842.68 : x
  2. Step 2: Convert to fraction form
    15,126.66/20,878.29 = 8,842.68/x
  3. Step 3: Cross multiply
    15,126.66x = 20,878.29 × 8,842.68
  4. Step 4: Simplify right side
    15,126.66x = 184,620,037.42
  5. Step 5: Solve for x
    x = 184,620,037.42/15,126.66
  6. Step 6: Final answer
    x = 12,204.94

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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.