Home / 18,208.31-25,125.93-11,133.36

Finding the Fourth Proportional to 18,208.31, 25,125.93 and 11,133.36

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Solution

The fourth proportional to 18,208.31, 25,125.93 and 11,133.36 is: 15,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.31 : 25,125.93 = 11,133.36 : x
  2. Step 2: Convert to fraction form
    18,208.31/25,125.93 = 11,133.36/x
  3. Step 3: Cross multiply
    18,208.31x = 25,125.93 × 11,133.36
  4. Step 4: Simplify right side
    18,208.31x = 279,736,024.02
  5. Step 5: Solve for x
    x = 279,736,024.02/18,208.31
  6. Step 6: Final answer
    x = 15,363.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.