Home / 13,519.04-18,656.07-7,550.79

Finding the Fourth Proportional to 13,519.04, 18,656.07 and 7,550.79

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Solution

The fourth proportional to 13,519.04, 18,656.07 and 7,550.79 is: 10,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.04 : 18,656.07 = 7,550.79 : x
  2. Step 2: Convert to fraction form
    13,519.04/18,656.07 = 7,550.79/x
  3. Step 3: Cross multiply
    13,519.04x = 18,656.07 × 7,550.79
  4. Step 4: Simplify right side
    13,519.04x = 140,868,095.11
  5. Step 5: Solve for x
    x = 140,868,095.11/13,519.04
  6. Step 6: Final answer
    x = 10,419.98

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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.