Home / 15,705.61-21,651.32-11,227.73

Finding the Fourth Proportional to 15,705.61, 21,651.32 and 11,227.73

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Solution

The fourth proportional to 15,705.61, 21,651.32 and 11,227.73 is: 15,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,705.61 : 21,651.32 = 11,227.73 : x
  2. Step 2: Convert to fraction form
    15,705.61/21,651.32 = 11,227.73/x
  3. Step 3: Cross multiply
    15,705.61x = 21,651.32 × 11,227.73
  4. Step 4: Simplify right side
    15,705.61x = 243,095,094.92
  5. Step 5: Solve for x
    x = 243,095,094.92/15,705.61
  6. Step 6: Final answer
    x = 15,478.24

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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.