Home / 10,538.34-15,826.64-9,140.48

Finding the Fourth Proportional to 10,538.34, 15,826.64 and 9,140.48

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Solution

The fourth proportional to 10,538.34, 15,826.64 and 9,140.48 is: 13,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.34 : 15,826.64 = 9,140.48 : x
  2. Step 2: Convert to fraction form
    10,538.34/15,826.64 = 9,140.48/x
  3. Step 3: Cross multiply
    10,538.34x = 15,826.64 × 9,140.48
  4. Step 4: Simplify right side
    10,538.34x = 144,662,961.55
  5. Step 5: Solve for x
    x = 144,662,961.55/10,538.34
  6. Step 6: Final answer
    x = 13,727.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.