Home / 15,748.80-23,623.20-13,243.20

Finding the Fourth Proportional to 15,748.80, 23,623.20 and 13,243.20

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Solution

The fourth proportional to 15,748.80, 23,623.20 and 13,243.20 is: 19,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.80 : 23,623.20 = 13,243.20 : x
  2. Step 2: Convert to fraction form
    15,748.80/23,623.20 = 13,243.20/x
  3. Step 3: Cross multiply
    15,748.80x = 23,623.20 × 13,243.20
  4. Step 4: Simplify right side
    15,748.80x = 312,846,762.24
  5. Step 5: Solve for x
    x = 312,846,762.24/15,748.80
  6. Step 6: Final answer
    x = 19,864.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.