Home / 7,475.13-10,315.68-4,117.94

Finding the Fourth Proportional to 7,475.13, 10,315.68 and 4,117.94

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Solution

The fourth proportional to 7,475.13, 10,315.68 and 4,117.94 is: 5,682.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.13 : 10,315.68 = 4,117.94 : x
  2. Step 2: Convert to fraction form
    7,475.13/10,315.68 = 4,117.94/x
  3. Step 3: Cross multiply
    7,475.13x = 10,315.68 × 4,117.94
  4. Step 4: Simplify right side
    7,475.13x = 42,479,299.72
  5. Step 5: Solve for x
    x = 42,479,299.72/7,475.13
  6. Step 6: Final answer
    x = 5,682.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.