Home / 15,620.46-21,548.79-9,649.98

Finding the Fourth Proportional to 15,620.46, 21,548.79 and 9,649.98

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Solution

The fourth proportional to 15,620.46, 21,548.79 and 9,649.98 is: 13,312.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.46 : 21,548.79 = 9,649.98 : x
  2. Step 2: Convert to fraction form
    15,620.46/21,548.79 = 9,649.98/x
  3. Step 3: Cross multiply
    15,620.46x = 21,548.79 × 9,649.98
  4. Step 4: Simplify right side
    15,620.46x = 207,945,392.52
  5. Step 5: Solve for x
    x = 207,945,392.52/15,620.46
  6. Step 6: Final answer
    x = 13,312.37

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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.