Home / 19,247.60-28,849.80-8,152.40

Finding the Fourth Proportional to 19,247.60, 28,849.80 and 8,152.40

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Solution

The fourth proportional to 19,247.60, 28,849.80 and 8,152.40 is: 12,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.60 : 28,849.80 = 8,152.40 : x
  2. Step 2: Convert to fraction form
    19,247.60/28,849.80 = 8,152.40/x
  3. Step 3: Cross multiply
    19,247.60x = 28,849.80 × 8,152.40
  4. Step 4: Simplify right side
    19,247.60x = 235,195,109.52
  5. Step 5: Solve for x
    x = 235,195,109.52/19,247.60
  6. Step 6: Final answer
    x = 12,219.45

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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.