Home / 19,148.60-28,707.40-8,610.90

Finding the Fourth Proportional to 19,148.60, 28,707.40 and 8,610.90

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Solution

The fourth proportional to 19,148.60, 28,707.40 and 8,610.90 is: 12,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.60 : 28,707.40 = 8,610.90 : x
  2. Step 2: Convert to fraction form
    19,148.60/28,707.40 = 8,610.90/x
  3. Step 3: Cross multiply
    19,148.60x = 28,707.40 × 8,610.90
  4. Step 4: Simplify right side
    19,148.60x = 247,196,561.42
  5. Step 5: Solve for x
    x = 247,196,561.42/19,148.60
  6. Step 6: Final answer
    x = 12,909.38

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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.