Home / 14,487.06-19,988.72-8,199.44

Finding the Fourth Proportional to 14,487.06, 19,988.72 and 8,199.44

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Solution

The fourth proportional to 14,487.06, 19,988.72 and 8,199.44 is: 11,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.06 : 19,988.72 = 8,199.44 : x
  2. Step 2: Convert to fraction form
    14,487.06/19,988.72 = 8,199.44/x
  3. Step 3: Cross multiply
    14,487.06x = 19,988.72 × 8,199.44
  4. Step 4: Simplify right side
    14,487.06x = 163,896,324.57
  5. Step 5: Solve for x
    x = 163,896,324.57/14,487.06
  6. Step 6: Final answer
    x = 11,313.29

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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.