Home / 15,572.58-21,493.59-9,906.22

Finding the Fourth Proportional to 15,572.58, 21,493.59 and 9,906.22

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Solution

The fourth proportional to 15,572.58, 21,493.59 and 9,906.22 is: 13,672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.58 : 21,493.59 = 9,906.22 : x
  2. Step 2: Convert to fraction form
    15,572.58/21,493.59 = 9,906.22/x
  3. Step 3: Cross multiply
    15,572.58x = 21,493.59 × 9,906.22
  4. Step 4: Simplify right side
    15,572.58x = 212,920,231.13
  5. Step 5: Solve for x
    x = 212,920,231.13/15,572.58
  6. Step 6: Final answer
    x = 13,672.77

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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.