Home / 10,701.60-16,132.61-9,987.99

Finding the Fourth Proportional to 10,701.60, 16,132.61 and 9,987.99

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Solution

The fourth proportional to 10,701.60, 16,132.61 and 9,987.99 is: 15,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,701.60 : 16,132.61 = 9,987.99 : x
  2. Step 2: Convert to fraction form
    10,701.60/16,132.61 = 9,987.99/x
  3. Step 3: Cross multiply
    10,701.60x = 16,132.61 × 9,987.99
  4. Step 4: Simplify right side
    10,701.60x = 161,132,297.41
  5. Step 5: Solve for x
    x = 161,132,297.41/10,701.60
  6. Step 6: Final answer
    x = 15,056.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.