Home / 13,323.95-18,387.12-7,355.51

Finding the Fourth Proportional to 13,323.95, 18,387.12 and 7,355.51

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Solution

The fourth proportional to 13,323.95, 18,387.12 and 7,355.51 is: 10,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.95 : 18,387.12 = 7,355.51 : x
  2. Step 2: Convert to fraction form
    13,323.95/18,387.12 = 7,355.51/x
  3. Step 3: Cross multiply
    13,323.95x = 18,387.12 × 7,355.51
  4. Step 4: Simplify right side
    13,323.95x = 135,246,608.25
  5. Step 5: Solve for x
    x = 135,246,608.25/13,323.95
  6. Step 6: Final answer
    x = 10,150.64

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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.