Home / 15,855.08-23,760.74-11,955.20

Finding the Fourth Proportional to 15,855.08, 23,760.74 and 11,955.20

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Solution

The fourth proportional to 15,855.08, 23,760.74 and 11,955.20 is: 17,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.08 : 23,760.74 = 11,955.20 : x
  2. Step 2: Convert to fraction form
    15,855.08/23,760.74 = 11,955.20/x
  3. Step 3: Cross multiply
    15,855.08x = 23,760.74 × 11,955.20
  4. Step 4: Simplify right side
    15,855.08x = 284,064,309.93
  5. Step 5: Solve for x
    x = 284,064,309.93/15,855.08
  6. Step 6: Final answer
    x = 17,916.30

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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.