Home / 10,108.26-15,155.10-5,173.74

Finding the Fourth Proportional to 10,108.26, 15,155.10 and 5,173.74

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Solution

The fourth proportional to 10,108.26, 15,155.10 and 5,173.74 is: 7,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.26 : 15,155.10 = 5,173.74 : x
  2. Step 2: Convert to fraction form
    10,108.26/15,155.10 = 5,173.74/x
  3. Step 3: Cross multiply
    10,108.26x = 15,155.10 × 5,173.74
  4. Step 4: Simplify right side
    10,108.26x = 78,408,547.07
  5. Step 5: Solve for x
    x = 78,408,547.07/10,108.26
  6. Step 6: Final answer
    x = 7,756.88

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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.