Home / 18,862.16-28,254.36-11,047.28

Finding the Fourth Proportional to 18,862.16, 28,254.36 and 11,047.28

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Solution

The fourth proportional to 18,862.16, 28,254.36 and 11,047.28 is: 16,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.16 : 28,254.36 = 11,047.28 : x
  2. Step 2: Convert to fraction form
    18,862.16/28,254.36 = 11,047.28/x
  3. Step 3: Cross multiply
    18,862.16x = 28,254.36 × 11,047.28
  4. Step 4: Simplify right side
    18,862.16x = 312,133,826.14
  5. Step 5: Solve for x
    x = 312,133,826.14/18,862.16
  6. Step 6: Final answer
    x = 16,548.15

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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.