Home / 10,287.48-15,355.95-8,835.96

Finding the Fourth Proportional to 10,287.48, 15,355.95 and 8,835.96

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Solution

The fourth proportional to 10,287.48, 15,355.95 and 8,835.96 is: 13,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.48 : 15,355.95 = 8,835.96 : x
  2. Step 2: Convert to fraction form
    10,287.48/15,355.95 = 8,835.96/x
  3. Step 3: Cross multiply
    10,287.48x = 15,355.95 × 8,835.96
  4. Step 4: Simplify right side
    10,287.48x = 135,684,559.96
  5. Step 5: Solve for x
    x = 135,684,559.96/10,287.48
  6. Step 6: Final answer
    x = 13,189.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.