Home / 13,816.16-19,085.60-13,304.16

Finding the Fourth Proportional to 13,816.16, 19,085.60 and 13,304.16

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Solution

The fourth proportional to 13,816.16, 19,085.60 and 13,304.16 is: 18,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.16 : 19,085.60 = 13,304.16 : x
  2. Step 2: Convert to fraction form
    13,816.16/19,085.60 = 13,304.16/x
  3. Step 3: Cross multiply
    13,816.16x = 19,085.60 × 13,304.16
  4. Step 4: Simplify right side
    13,816.16x = 253,917,876.10
  5. Step 5: Solve for x
    x = 253,917,876.10/13,816.16
  6. Step 6: Final answer
    x = 18,378.32

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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.