Home / 13,151.80-19,727.70-4,387.60

Finding the Fourth Proportional to 13,151.80, 19,727.70 and 4,387.60

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Solution

The fourth proportional to 13,151.80, 19,727.70 and 4,387.60 is: 6,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.80 : 19,727.70 = 4,387.60 : x
  2. Step 2: Convert to fraction form
    13,151.80/19,727.70 = 4,387.60/x
  3. Step 3: Cross multiply
    13,151.80x = 19,727.70 × 4,387.60
  4. Step 4: Simplify right side
    13,151.80x = 86,557,256.52
  5. Step 5: Solve for x
    x = 86,557,256.52/13,151.80
  6. Step 6: Final answer
    x = 6,581.40

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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.