Home / 10,880.67-16,328.30-6,987.81

Finding the Fourth Proportional to 10,880.67, 16,328.30 and 6,987.81

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Solution

The fourth proportional to 10,880.67, 16,328.30 and 6,987.81 is: 10,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.67 : 16,328.30 = 6,987.81 : x
  2. Step 2: Convert to fraction form
    10,880.67/16,328.30 = 6,987.81/x
  3. Step 3: Cross multiply
    10,880.67x = 16,328.30 × 6,987.81
  4. Step 4: Simplify right side
    10,880.67x = 114,099,058.02
  5. Step 5: Solve for x
    x = 114,099,058.02/10,880.67
  6. Step 6: Final answer
    x = 10,486.40

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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.