Home / 10,655.20-15,973.62-4,080.16

Finding the Fourth Proportional to 10,655.20, 15,973.62 and 4,080.16

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Solution

The fourth proportional to 10,655.20, 15,973.62 and 4,080.16 is: 6,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.20 : 15,973.62 = 4,080.16 : x
  2. Step 2: Convert to fraction form
    10,655.20/15,973.62 = 4,080.16/x
  3. Step 3: Cross multiply
    10,655.20x = 15,973.62 × 4,080.16
  4. Step 4: Simplify right side
    10,655.20x = 65,174,925.38
  5. Step 5: Solve for x
    x = 65,174,925.38/10,655.20
  6. Step 6: Final answer
    x = 6,116.72

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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.