Home / 13,236.62-19,812.34-6,987.74

Finding the Fourth Proportional to 13,236.62, 19,812.34 and 6,987.74

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Solution

The fourth proportional to 13,236.62, 19,812.34 and 6,987.74 is: 10,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.62 : 19,812.34 = 6,987.74 : x
  2. Step 2: Convert to fraction form
    13,236.62/19,812.34 = 6,987.74/x
  3. Step 3: Cross multiply
    13,236.62x = 19,812.34 × 6,987.74
  4. Step 4: Simplify right side
    13,236.62x = 138,443,480.71
  5. Step 5: Solve for x
    x = 138,443,480.71/13,236.62
  6. Step 6: Final answer
    x = 10,459.13

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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.