Home / 19,162.26-28,750.95-12,587.22

Finding the Fourth Proportional to 19,162.26, 28,750.95 and 12,587.22

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Solution

The fourth proportional to 19,162.26, 28,750.95 and 12,587.22 is: 18,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.26 : 28,750.95 = 12,587.22 : x
  2. Step 2: Convert to fraction form
    19,162.26/28,750.95 = 12,587.22/x
  3. Step 3: Cross multiply
    19,162.26x = 28,750.95 × 12,587.22
  4. Step 4: Simplify right side
    19,162.26x = 361,894,532.86
  5. Step 5: Solve for x
    x = 361,894,532.86/19,162.26
  6. Step 6: Final answer
    x = 18,885.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.