Home / 10,919.99-15,071.21-6,673.51

Finding the Fourth Proportional to 10,919.99, 15,071.21 and 6,673.51

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Solution

The fourth proportional to 10,919.99, 15,071.21 and 6,673.51 is: 9,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.99 : 15,071.21 = 6,673.51 : x
  2. Step 2: Convert to fraction form
    10,919.99/15,071.21 = 6,673.51/x
  3. Step 3: Cross multiply
    10,919.99x = 15,071.21 × 6,673.51
  4. Step 4: Simplify right side
    10,919.99x = 100,577,870.65
  5. Step 5: Solve for x
    x = 100,577,870.65/10,919.99
  6. Step 6: Final answer
    x = 9,210.44

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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.