Home / 13,195.93-18,210.42-7,146.24

Finding the Fourth Proportional to 13,195.93, 18,210.42 and 7,146.24

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Solution

The fourth proportional to 13,195.93, 18,210.42 and 7,146.24 is: 9,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.93 : 18,210.42 = 7,146.24 : x
  2. Step 2: Convert to fraction form
    13,195.93/18,210.42 = 7,146.24/x
  3. Step 3: Cross multiply
    13,195.93x = 18,210.42 × 7,146.24
  4. Step 4: Simplify right side
    13,195.93x = 130,136,031.82
  5. Step 5: Solve for x
    x = 130,136,031.82/13,195.93
  6. Step 6: Final answer
    x = 9,861.83

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Double scale
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Similar ratio
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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.