Home / 10,239.72-14,136.84-9,649.24

Finding the Fourth Proportional to 10,239.72, 14,136.84 and 9,649.24

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Solution

The fourth proportional to 10,239.72, 14,136.84 and 9,649.24 is: 13,321.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.72 : 14,136.84 = 9,649.24 : x
  2. Step 2: Convert to fraction form
    10,239.72/14,136.84 = 9,649.24/x
  3. Step 3: Cross multiply
    10,239.72x = 14,136.84 × 9,649.24
  4. Step 4: Simplify right side
    10,239.72x = 136,409,762.00
  5. Step 5: Solve for x
    x = 136,409,762.00/10,239.72
  6. Step 6: Final answer
    x = 13,321.63

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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.