Home / 15,905.34-21,948.63-8,832.21

Finding the Fourth Proportional to 15,905.34, 21,948.63 and 8,832.21

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Solution

The fourth proportional to 15,905.34, 21,948.63 and 8,832.21 is: 12,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.34 : 21,948.63 = 8,832.21 : x
  2. Step 2: Convert to fraction form
    15,905.34/21,948.63 = 8,832.21/x
  3. Step 3: Cross multiply
    15,905.34x = 21,948.63 × 8,832.21
  4. Step 4: Simplify right side
    15,905.34x = 193,854,909.37
  5. Step 5: Solve for x
    x = 193,854,909.37/15,905.34
  6. Step 6: Final answer
    x = 12,188.04

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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.