Home / 10,854.12-16,283.20-4,931.42

Finding the Fourth Proportional to 10,854.12, 16,283.20 and 4,931.42

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Solution

The fourth proportional to 10,854.12, 16,283.20 and 4,931.42 is: 7,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.12 : 16,283.20 = 4,931.42 : x
  2. Step 2: Convert to fraction form
    10,854.12/16,283.20 = 4,931.42/x
  3. Step 3: Cross multiply
    10,854.12x = 16,283.20 × 4,931.42
  4. Step 4: Simplify right side
    10,854.12x = 80,299,298.14
  5. Step 5: Solve for x
    x = 80,299,298.14/10,854.12
  6. Step 6: Final answer
    x = 7,398.05

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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.