Home / 13,323.88-18,387.08-7,355.80

Finding the Fourth Proportional to 13,323.88, 18,387.08 and 7,355.80

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Solution

The fourth proportional to 13,323.88, 18,387.08 and 7,355.80 is: 10,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.88 : 18,387.08 = 7,355.80 : x
  2. Step 2: Convert to fraction form
    13,323.88/18,387.08 = 7,355.80/x
  3. Step 3: Cross multiply
    13,323.88x = 18,387.08 × 7,355.80
  4. Step 4: Simplify right side
    13,323.88x = 135,251,683.06
  5. Step 5: Solve for x
    x = 135,251,683.06/13,323.88
  6. Step 6: Final answer
    x = 10,151.07

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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.