Home / 13,943.36-19,242.24-8,356.16

Finding the Fourth Proportional to 13,943.36, 19,242.24 and 8,356.16

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Solution

The fourth proportional to 13,943.36, 19,242.24 and 8,356.16 is: 11,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.36 : 19,242.24 = 8,356.16 : x
  2. Step 2: Convert to fraction form
    13,943.36/19,242.24 = 8,356.16/x
  3. Step 3: Cross multiply
    13,943.36x = 19,242.24 × 8,356.16
  4. Step 4: Simplify right side
    13,943.36x = 160,791,236.20
  5. Step 5: Solve for x
    x = 160,791,236.20/13,943.36
  6. Step 6: Final answer
    x = 11,531.74

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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.