Home / 10,176.26-14,042.54-5,638.90

Finding the Fourth Proportional to 10,176.26, 14,042.54 and 5,638.90

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Solution

The fourth proportional to 10,176.26, 14,042.54 and 5,638.90 is: 7,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,176.26 : 14,042.54 = 5,638.90 : x
  2. Step 2: Convert to fraction form
    10,176.26/14,042.54 = 5,638.90/x
  3. Step 3: Cross multiply
    10,176.26x = 14,042.54 × 5,638.90
  4. Step 4: Simplify right side
    10,176.26x = 79,184,478.81
  5. Step 5: Solve for x
    x = 79,184,478.81/10,176.26
  6. Step 6: Final answer
    x = 7,781.29

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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.