Home / 15,575.18-21,493.76-11,106.72

Finding the Fourth Proportional to 15,575.18, 21,493.76 and 11,106.72

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Solution

The fourth proportional to 15,575.18, 21,493.76 and 11,106.72 is: 15,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,575.18 : 21,493.76 = 11,106.72 : x
  2. Step 2: Convert to fraction form
    15,575.18/21,493.76 = 11,106.72/x
  3. Step 3: Cross multiply
    15,575.18x = 21,493.76 × 11,106.72
  4. Step 4: Simplify right side
    15,575.18x = 238,725,118.53
  5. Step 5: Solve for x
    x = 238,725,118.53/15,575.18
  6. Step 6: Final answer
    x = 15,327.28

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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.