Home / 19,870.08-27,424.08-11,491.44

Finding the Fourth Proportional to 19,870.08, 27,424.08 and 11,491.44

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Solution

The fourth proportional to 19,870.08, 27,424.08 and 11,491.44 is: 15,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,870.08 : 27,424.08 = 11,491.44 : x
  2. Step 2: Convert to fraction form
    19,870.08/27,424.08 = 11,491.44/x
  3. Step 3: Cross multiply
    19,870.08x = 27,424.08 × 11,491.44
  4. Step 4: Simplify right side
    19,870.08x = 315,142,169.88
  5. Step 5: Solve for x
    x = 315,142,169.88/19,870.08
  6. Step 6: Final answer
    x = 15,860.14

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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.