Home / 11,133.10-15,356.28-7,159.24

Finding the Fourth Proportional to 11,133.10, 15,356.28 and 7,159.24

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Solution

The fourth proportional to 11,133.10, 15,356.28 and 7,159.24 is: 9,874.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.10 : 15,356.28 = 7,159.24 : x
  2. Step 2: Convert to fraction form
    11,133.10/15,356.28 = 7,159.24/x
  3. Step 3: Cross multiply
    11,133.10x = 15,356.28 × 7,159.24
  4. Step 4: Simplify right side
    11,133.10x = 109,939,273.53
  5. Step 5: Solve for x
    x = 109,939,273.53/11,133.10
  6. Step 6: Final answer
    x = 9,874.99

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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.