Home / 7,165.12-10,742.24-3,700.16

Finding the Fourth Proportional to 7,165.12, 10,742.24 and 3,700.16

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Solution

The fourth proportional to 7,165.12, 10,742.24 and 3,700.16 is: 5,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.12 : 10,742.24 = 3,700.16 : x
  2. Step 2: Convert to fraction form
    7,165.12/10,742.24 = 3,700.16/x
  3. Step 3: Cross multiply
    7,165.12x = 10,742.24 × 3,700.16
  4. Step 4: Simplify right side
    7,165.12x = 39,748,006.76
  5. Step 5: Solve for x
    x = 39,748,006.76/7,165.12
  6. Step 6: Final answer
    x = 5,547.43

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1.5x scale

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.