Home / 15,912.13-23,862.18-12,784.45

Finding the Fourth Proportional to 15,912.13, 23,862.18 and 12,784.45

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Solution

The fourth proportional to 15,912.13, 23,862.18 and 12,784.45 is: 19,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.13 : 23,862.18 = 12,784.45 : x
  2. Step 2: Convert to fraction form
    15,912.13/23,862.18 = 12,784.45/x
  3. Step 3: Cross multiply
    15,912.13x = 23,862.18 × 12,784.45
  4. Step 4: Simplify right side
    15,912.13x = 305,064,847.10
  5. Step 5: Solve for x
    x = 305,064,847.10/15,912.13
  6. Step 6: Final answer
    x = 19,171.84

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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.