Home / 13,444.80-18,553.79-7,477.02

Finding the Fourth Proportional to 13,444.80, 18,553.79 and 7,477.02

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Solution

The fourth proportional to 13,444.80, 18,553.79 and 7,477.02 is: 10,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.80 : 18,553.79 = 7,477.02 : x
  2. Step 2: Convert to fraction form
    13,444.80/18,553.79 = 7,477.02/x
  3. Step 3: Cross multiply
    13,444.80x = 18,553.79 × 7,477.02
  4. Step 4: Simplify right side
    13,444.80x = 138,727,021.52
  5. Step 5: Solve for x
    x = 138,727,021.52/13,444.80
  6. Step 6: Final answer
    x = 10,318.27

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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.