Home / 15,685.12-23,528.49-6,920.11

Finding the Fourth Proportional to 15,685.12, 23,528.49 and 6,920.11

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Solution

The fourth proportional to 15,685.12, 23,528.49 and 6,920.11 is: 10,380.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685.12 : 23,528.49 = 6,920.11 : x
  2. Step 2: Convert to fraction form
    15,685.12/23,528.49 = 6,920.11/x
  3. Step 3: Cross multiply
    15,685.12x = 23,528.49 × 6,920.11
  4. Step 4: Simplify right side
    15,685.12x = 162,819,738.93
  5. Step 5: Solve for x
    x = 162,819,738.93/15,685.12
  6. Step 6: Final answer
    x = 10,380.52

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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.