Home / 13,816.19-19,069.28-8,148.82

Finding the Fourth Proportional to 13,816.19, 19,069.28 and 8,148.82

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Solution

The fourth proportional to 13,816.19, 19,069.28 and 8,148.82 is: 11,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.19 : 19,069.28 = 8,148.82 : x
  2. Step 2: Convert to fraction form
    13,816.19/19,069.28 = 8,148.82/x
  3. Step 3: Cross multiply
    13,816.19x = 19,069.28 × 8,148.82
  4. Step 4: Simplify right side
    13,816.19x = 155,392,130.25
  5. Step 5: Solve for x
    x = 155,392,130.25/13,816.19
  6. Step 6: Final answer
    x = 11,247.10

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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.