Home / 10,136.12-13,987.36-7,482.56

Finding the Fourth Proportional to 10,136.12, 13,987.36 and 7,482.56

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Solution

The fourth proportional to 10,136.12, 13,987.36 and 7,482.56 is: 10,325.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.12 : 13,987.36 = 7,482.56 : x
  2. Step 2: Convert to fraction form
    10,136.12/13,987.36 = 7,482.56/x
  3. Step 3: Cross multiply
    10,136.12x = 13,987.36 × 7,482.56
  4. Step 4: Simplify right side
    10,136.12x = 104,661,260.44
  5. Step 5: Solve for x
    x = 104,661,260.44/10,136.12
  6. Step 6: Final answer
    x = 10,325.57

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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.