Home / 15,323.46-21,147.23-9,353.41

Finding the Fourth Proportional to 15,323.46, 21,147.23 and 9,353.41

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Solution

The fourth proportional to 15,323.46, 21,147.23 and 9,353.41 is: 12,908.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.46 : 21,147.23 = 9,353.41 : x
  2. Step 2: Convert to fraction form
    15,323.46/21,147.23 = 9,353.41/x
  3. Step 3: Cross multiply
    15,323.46x = 21,147.23 × 9,353.41
  4. Step 4: Simplify right side
    15,323.46x = 197,798,712.55
  5. Step 5: Solve for x
    x = 197,798,712.55/15,323.46
  6. Step 6: Final answer
    x = 12,908.23

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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.