Home / 13,162.73-18,152.81-10,921.06

Finding the Fourth Proportional to 13,162.73, 18,152.81 and 10,921.06

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Solution

The fourth proportional to 13,162.73, 18,152.81 and 10,921.06 is: 15,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.73 : 18,152.81 = 10,921.06 : x
  2. Step 2: Convert to fraction form
    13,162.73/18,152.81 = 10,921.06/x
  3. Step 3: Cross multiply
    13,162.73x = 18,152.81 × 10,921.06
  4. Step 4: Simplify right side
    13,162.73x = 198,247,927.18
  5. Step 5: Solve for x
    x = 198,247,927.18/13,162.73
  6. Step 6: Final answer
    x = 15,061.31

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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.