Home / 15,640.98-21,586.41-9,353.22

Finding the Fourth Proportional to 15,640.98, 21,586.41 and 9,353.22

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Solution

The fourth proportional to 15,640.98, 21,586.41 and 9,353.22 is: 12,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.98 : 21,586.41 = 9,353.22 : x
  2. Step 2: Convert to fraction form
    15,640.98/21,586.41 = 9,353.22/x
  3. Step 3: Cross multiply
    15,640.98x = 21,586.41 × 9,353.22
  4. Step 4: Simplify right side
    15,640.98x = 201,902,441.74
  5. Step 5: Solve for x
    x = 201,902,441.74/15,640.98
  6. Step 6: Final answer
    x = 12,908.55

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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.