Home / 13,177.60-19,772.16-5,388.16

Finding the Fourth Proportional to 13,177.60, 19,772.16 and 5,388.16

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Solution

The fourth proportional to 13,177.60, 19,772.16 and 5,388.16 is: 8,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.60 : 19,772.16 = 5,388.16 : x
  2. Step 2: Convert to fraction form
    13,177.60/19,772.16 = 5,388.16/x
  3. Step 3: Cross multiply
    13,177.60x = 19,772.16 × 5,388.16
  4. Step 4: Simplify right side
    13,177.60x = 106,535,561.63
  5. Step 5: Solve for x
    x = 106,535,561.63/13,177.60
  6. Step 6: Final answer
    x = 8,084.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.