Home / 10,918.99-15,069.83-6,672.51

Finding the Fourth Proportional to 10,918.99, 15,069.83 and 6,672.51

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Solution

The fourth proportional to 10,918.99, 15,069.83 and 6,672.51 is: 9,209.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.99 : 15,069.83 = 6,672.51 : x
  2. Step 2: Convert to fraction form
    10,918.99/15,069.83 = 6,672.51/x
  3. Step 3: Cross multiply
    10,918.99x = 15,069.83 × 6,672.51
  4. Step 4: Simplify right side
    10,918.99x = 100,553,595.54
  5. Step 5: Solve for x
    x = 100,553,595.54/10,918.99
  6. Step 6: Final answer
    x = 9,209.06

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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.