Home / 15,214.68-20,996.10-8,925.84

Finding the Fourth Proportional to 15,214.68, 20,996.10 and 8,925.84

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Solution

The fourth proportional to 15,214.68, 20,996.10 and 8,925.84 is: 12,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.68 : 20,996.10 = 8,925.84 : x
  2. Step 2: Convert to fraction form
    15,214.68/20,996.10 = 8,925.84/x
  3. Step 3: Cross multiply
    15,214.68x = 20,996.10 × 8,925.84
  4. Step 4: Simplify right side
    15,214.68x = 187,407,829.22
  5. Step 5: Solve for x
    x = 187,407,829.22/15,214.68
  6. Step 6: Final answer
    x = 12,317.57

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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.