Home / 10,515.59-15,741.18-6,810.45

Finding the Fourth Proportional to 10,515.59, 15,741.18 and 6,810.45

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Solution

The fourth proportional to 10,515.59, 15,741.18 and 6,810.45 is: 10,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.59 : 15,741.18 = 6,810.45 : x
  2. Step 2: Convert to fraction form
    10,515.59/15,741.18 = 6,810.45/x
  3. Step 3: Cross multiply
    10,515.59x = 15,741.18 × 6,810.45
  4. Step 4: Simplify right side
    10,515.59x = 107,204,519.33
  5. Step 5: Solve for x
    x = 107,204,519.33/10,515.59
  6. Step 6: Final answer
    x = 10,194.82

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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.