Home / 15,557.17-21,468.36-8,842.68

Finding the Fourth Proportional to 15,557.17, 21,468.36 and 8,842.68

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Solution

The fourth proportional to 15,557.17, 21,468.36 and 8,842.68 is: 12,202.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.17 : 21,468.36 = 8,842.68 : x
  2. Step 2: Convert to fraction form
    15,557.17/21,468.36 = 8,842.68/x
  3. Step 3: Cross multiply
    15,557.17x = 21,468.36 × 8,842.68
  4. Step 4: Simplify right side
    15,557.17x = 189,837,837.60
  5. Step 5: Solve for x
    x = 189,837,837.60/15,557.17
  6. Step 6: Final answer
    x = 12,202.59

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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.