Home / 15,271.32-21,073.18-8,555.96

Finding the Fourth Proportional to 15,271.32, 21,073.18 and 8,555.96

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Solution

The fourth proportional to 15,271.32, 21,073.18 and 8,555.96 is: 11,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.32 : 21,073.18 = 8,555.96 : x
  2. Step 2: Convert to fraction form
    15,271.32/21,073.18 = 8,555.96/x
  3. Step 3: Cross multiply
    15,271.32x = 21,073.18 × 8,555.96
  4. Step 4: Simplify right side
    15,271.32x = 180,301,285.15
  5. Step 5: Solve for x
    x = 180,301,285.15/15,271.32
  6. Step 6: Final answer
    x = 11,806.53

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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.