Home / 15,372.42-21,217.05-12,008.58

Finding the Fourth Proportional to 15,372.42, 21,217.05 and 12,008.58

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Solution

The fourth proportional to 15,372.42, 21,217.05 and 12,008.58 is: 16,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.42 : 21,217.05 = 12,008.58 : x
  2. Step 2: Convert to fraction form
    15,372.42/21,217.05 = 12,008.58/x
  3. Step 3: Cross multiply
    15,372.42x = 21,217.05 × 12,008.58
  4. Step 4: Simplify right side
    15,372.42x = 254,786,642.29
  5. Step 5: Solve for x
    x = 254,786,642.29/15,372.42
  6. Step 6: Final answer
    x = 16,574.27

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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.