Home / 13,323.72-18,387.12-7,355.77

Finding the Fourth Proportional to 13,323.72, 18,387.12 and 7,355.77

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Solution

The fourth proportional to 13,323.72, 18,387.12 and 7,355.77 is: 10,151.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.72 : 18,387.12 = 7,355.77 : x
  2. Step 2: Convert to fraction form
    13,323.72/18,387.12 = 7,355.77/x
  3. Step 3: Cross multiply
    13,323.72x = 18,387.12 × 7,355.77
  4. Step 4: Simplify right side
    13,323.72x = 135,251,365.92
  5. Step 5: Solve for x
    x = 135,251,365.92/13,323.72
  6. Step 6: Final answer
    x = 10,151.17

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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.