Home / 10,931.14-16,396.71-4,687.12

Finding the Fourth Proportional to 10,931.14, 16,396.71 and 4,687.12

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Solution

The fourth proportional to 10,931.14, 16,396.71 and 4,687.12 is: 7,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.14 : 16,396.71 = 4,687.12 : x
  2. Step 2: Convert to fraction form
    10,931.14/16,396.71 = 4,687.12/x
  3. Step 3: Cross multiply
    10,931.14x = 16,396.71 × 4,687.12
  4. Step 4: Simplify right side
    10,931.14x = 76,853,347.38
  5. Step 5: Solve for x
    x = 76,853,347.38/10,931.14
  6. Step 6: Final answer
    x = 7,030.68

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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.