Home / 11,153.85-16,603.34-10,987.71

Finding the Fourth Proportional to 11,153.85, 16,603.34 and 10,987.71

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Solution

The fourth proportional to 11,153.85, 16,603.34 and 10,987.71 is: 16,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.85 : 16,603.34 = 10,987.71 : x
  2. Step 2: Convert to fraction form
    11,153.85/16,603.34 = 10,987.71/x
  3. Step 3: Cross multiply
    11,153.85x = 16,603.34 × 10,987.71
  4. Step 4: Simplify right side
    11,153.85x = 182,432,712.42
  5. Step 5: Solve for x
    x = 182,432,712.42/11,153.85
  6. Step 6: Final answer
    x = 16,356.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.