Home / 15,750.72-23,623.92-9,889.20

Finding the Fourth Proportional to 15,750.72, 23,623.92 and 9,889.20

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Solution

The fourth proportional to 15,750.72, 23,623.92 and 9,889.20 is: 14,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.72 : 23,623.92 = 9,889.20 : x
  2. Step 2: Convert to fraction form
    15,750.72/23,623.92 = 9,889.20/x
  3. Step 3: Cross multiply
    15,750.72x = 23,623.92 × 9,889.20
  4. Step 4: Simplify right side
    15,750.72x = 233,621,669.66
  5. Step 5: Solve for x
    x = 233,621,669.66/15,750.72
  6. Step 6: Final answer
    x = 14,832.44

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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.