Home / 15,571.47-21,488.63-9,606.60

Finding the Fourth Proportional to 15,571.47, 21,488.63 and 9,606.60

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Solution

The fourth proportional to 15,571.47, 21,488.63 and 9,606.60 is: 13,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.47 : 21,488.63 = 9,606.60 : x
  2. Step 2: Convert to fraction form
    15,571.47/21,488.63 = 9,606.60/x
  3. Step 3: Cross multiply
    15,571.47x = 21,488.63 × 9,606.60
  4. Step 4: Simplify right side
    15,571.47x = 206,432,624.93
  5. Step 5: Solve for x
    x = 206,432,624.93/15,571.47
  6. Step 6: Final answer
    x = 13,257.11

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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.