Home / 11,701.47-16,156.49-7,231.35

Finding the Fourth Proportional to 11,701.47, 16,156.49 and 7,231.35

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Solution

The fourth proportional to 11,701.47, 16,156.49 and 7,231.35 is: 9,984.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.47 : 16,156.49 = 7,231.35 : x
  2. Step 2: Convert to fraction form
    11,701.47/16,156.49 = 7,231.35/x
  3. Step 3: Cross multiply
    11,701.47x = 16,156.49 × 7,231.35
  4. Step 4: Simplify right side
    11,701.47x = 116,833,197.80
  5. Step 5: Solve for x
    x = 116,833,197.80/11,701.47
  6. Step 6: Final answer
    x = 9,984.49

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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.