Home / 15,251.68-21,025.74-11,475.46

Finding the Fourth Proportional to 15,251.68, 21,025.74 and 11,475.46

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Solution

The fourth proportional to 15,251.68, 21,025.74 and 11,475.46 is: 15,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.68 : 21,025.74 = 11,475.46 : x
  2. Step 2: Convert to fraction form
    15,251.68/21,025.74 = 11,475.46/x
  3. Step 3: Cross multiply
    15,251.68x = 21,025.74 × 11,475.46
  4. Step 4: Simplify right side
    15,251.68x = 241,280,038.34
  5. Step 5: Solve for x
    x = 241,280,038.34/15,251.68
  6. Step 6: Final answer
    x = 15,819.90

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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.