Home / 15,009.24-20,712.68-8,294.84

Finding the Fourth Proportional to 15,009.24, 20,712.68 and 8,294.84

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Solution

The fourth proportional to 15,009.24, 20,712.68 and 8,294.84 is: 11,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.24 : 20,712.68 = 8,294.84 : x
  2. Step 2: Convert to fraction form
    15,009.24/20,712.68 = 8,294.84/x
  3. Step 3: Cross multiply
    15,009.24x = 20,712.68 × 8,294.84
  4. Step 4: Simplify right side
    15,009.24x = 171,808,366.57
  5. Step 5: Solve for x
    x = 171,808,366.57/15,009.24
  6. Step 6: Final answer
    x = 11,446.84

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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.