Home / 10,290.42-14,195.56-6,507.21

Finding the Fourth Proportional to 10,290.42, 14,195.56 and 6,507.21

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Solution

The fourth proportional to 10,290.42, 14,195.56 and 6,507.21 is: 8,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.42 : 14,195.56 = 6,507.21 : x
  2. Step 2: Convert to fraction form
    10,290.42/14,195.56 = 6,507.21/x
  3. Step 3: Cross multiply
    10,290.42x = 14,195.56 × 6,507.21
  4. Step 4: Simplify right side
    10,290.42x = 92,373,489.99
  5. Step 5: Solve for x
    x = 92,373,489.99/10,290.42
  6. Step 6: Final answer
    x = 8,976.65

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Double scale
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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.