Home / 10,323.14-15,405.60-9,215.96

Finding the Fourth Proportional to 10,323.14, 15,405.60 and 9,215.96

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Solution

The fourth proportional to 10,323.14, 15,405.60 and 9,215.96 is: 13,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,323.14 : 15,405.60 = 9,215.96 : x
  2. Step 2: Convert to fraction form
    10,323.14/15,405.60 = 9,215.96/x
  3. Step 3: Cross multiply
    10,323.14x = 15,405.60 × 9,215.96
  4. Step 4: Simplify right side
    10,323.14x = 141,977,347.30
  5. Step 5: Solve for x
    x = 141,977,347.30/10,323.14
  6. Step 6: Final answer
    x = 13,753.31

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1.5x scale

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.