Home / 15,358.12-21,194.10-8,734.12

Finding the Fourth Proportional to 15,358.12, 21,194.10 and 8,734.12

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Solution

The fourth proportional to 15,358.12, 21,194.10 and 8,734.12 is: 12,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.12 : 21,194.10 = 8,734.12 : x
  2. Step 2: Convert to fraction form
    15,358.12/21,194.10 = 8,734.12/x
  3. Step 3: Cross multiply
    15,358.12x = 21,194.10 × 8,734.12
  4. Step 4: Simplify right side
    15,358.12x = 185,111,812.69
  5. Step 5: Solve for x
    x = 185,111,812.69/15,358.12
  6. Step 6: Final answer
    x = 12,053.03

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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.