Home / 14,412.24-19,889.64-8,125.20

Finding the Fourth Proportional to 14,412.24, 19,889.64 and 8,125.20

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Solution

The fourth proportional to 14,412.24, 19,889.64 and 8,125.20 is: 11,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.24 : 19,889.64 = 8,125.20 : x
  2. Step 2: Convert to fraction form
    14,412.24/19,889.64 = 8,125.20/x
  3. Step 3: Cross multiply
    14,412.24x = 19,889.64 × 8,125.20
  4. Step 4: Simplify right side
    14,412.24x = 161,607,302.93
  5. Step 5: Solve for x
    x = 161,607,302.93/14,412.24
  6. Step 6: Final answer
    x = 11,213.20

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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.