Home / 13,191.20-19,784.66-4,875.13

Finding the Fourth Proportional to 13,191.20, 19,784.66 and 4,875.13

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Solution

The fourth proportional to 13,191.20, 19,784.66 and 4,875.13 is: 7,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.20 : 19,784.66 = 4,875.13 : x
  2. Step 2: Convert to fraction form
    13,191.20/19,784.66 = 4,875.13/x
  3. Step 3: Cross multiply
    13,191.20x = 19,784.66 × 4,875.13
  4. Step 4: Simplify right side
    13,191.20x = 96,452,789.51
  5. Step 5: Solve for x
    x = 96,452,789.51/13,191.20
  6. Step 6: Final answer
    x = 7,311.90

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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.