Home / 11,710.48-16,156.20-7,517.20

Finding the Fourth Proportional to 11,710.48, 16,156.20 and 7,517.20

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Solution

The fourth proportional to 11,710.48, 16,156.20 and 7,517.20 is: 10,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.48 : 16,156.20 = 7,517.20 : x
  2. Step 2: Convert to fraction form
    11,710.48/16,156.20 = 7,517.20/x
  3. Step 3: Cross multiply
    11,710.48x = 16,156.20 × 7,517.20
  4. Step 4: Simplify right side
    11,710.48x = 121,449,386.64
  5. Step 5: Solve for x
    x = 121,449,386.64/11,710.48
  6. Step 6: Final answer
    x = 10,371.00

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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.