Home / 15,191.30-20,955.56-8,902.46

Finding the Fourth Proportional to 15,191.30, 20,955.56 and 8,902.46

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Solution

The fourth proportional to 15,191.30, 20,955.56 and 8,902.46 is: 12,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.30 : 20,955.56 = 8,902.46 : x
  2. Step 2: Convert to fraction form
    15,191.30/20,955.56 = 8,902.46/x
  3. Step 3: Cross multiply
    15,191.30x = 20,955.56 × 8,902.46
  4. Step 4: Simplify right side
    15,191.30x = 186,556,034.68
  5. Step 5: Solve for x
    x = 186,556,034.68/15,191.30
  6. Step 6: Final answer
    x = 12,280.45

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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.