Home / 10,125.89-15,191.76-3,106.94

Finding the Fourth Proportional to 10,125.89, 15,191.76 and 3,106.94

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Solution

The fourth proportional to 10,125.89, 15,191.76 and 3,106.94 is: 4,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.89 : 15,191.76 = 3,106.94 : x
  2. Step 2: Convert to fraction form
    10,125.89/15,191.76 = 3,106.94/x
  3. Step 3: Cross multiply
    10,125.89x = 15,191.76 × 3,106.94
  4. Step 4: Simplify right side
    10,125.89x = 47,199,841.07
  5. Step 5: Solve for x
    x = 47,199,841.07/10,125.89
  6. Step 6: Final answer
    x = 4,661.30

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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.