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Finding the Fourth Proportional to 10,152.39, 14,010.39 and 5,676.40

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Solution

The fourth proportional to 10,152.39, 14,010.39 and 5,676.40 is: 7,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.39 : 14,010.39 = 5,676.40 : x
  2. Step 2: Convert to fraction form
    10,152.39/14,010.39 = 5,676.40/x
  3. Step 3: Cross multiply
    10,152.39x = 14,010.39 × 5,676.40
  4. Step 4: Simplify right side
    10,152.39x = 79,528,650.68
  5. Step 5: Solve for x
    x = 79,528,650.68/10,152.39
  6. Step 6: Final answer
    x = 7,833.49

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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.