Home / 14,389.16-19,810.32-11,388.92

Finding the Fourth Proportional to 14,389.16, 19,810.32 and 11,388.92

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Solution

The fourth proportional to 14,389.16, 19,810.32 and 11,388.92 is: 15,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.16 : 19,810.32 = 11,388.92 : x
  2. Step 2: Convert to fraction form
    14,389.16/19,810.32 = 11,388.92/x
  3. Step 3: Cross multiply
    14,389.16x = 19,810.32 × 11,388.92
  4. Step 4: Simplify right side
    14,389.16x = 225,618,149.65
  5. Step 5: Solve for x
    x = 225,618,149.65/14,389.16
  6. Step 6: Final answer
    x = 15,679.73

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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.