Home / 15,568.34-21,484.55-8,494.76

Finding the Fourth Proportional to 15,568.34, 21,484.55 and 8,494.76

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Solution

The fourth proportional to 15,568.34, 21,484.55 and 8,494.76 is: 11,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,568.34 : 21,484.55 = 8,494.76 : x
  2. Step 2: Convert to fraction form
    15,568.34/21,484.55 = 8,494.76/x
  3. Step 3: Cross multiply
    15,568.34x = 21,484.55 × 8,494.76
  4. Step 4: Simplify right side
    15,568.34x = 182,506,095.96
  5. Step 5: Solve for x
    x = 182,506,095.96/15,568.34
  6. Step 6: Final answer
    x = 11,722.90

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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.