Home / 15,657.31-21,606.27-8,941.62

Finding the Fourth Proportional to 15,657.31, 21,606.27 and 8,941.62

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Solution

The fourth proportional to 15,657.31, 21,606.27 and 8,941.62 is: 12,338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.31 : 21,606.27 = 8,941.62 : x
  2. Step 2: Convert to fraction form
    15,657.31/21,606.27 = 8,941.62/x
  3. Step 3: Cross multiply
    15,657.31x = 21,606.27 × 8,941.62
  4. Step 4: Simplify right side
    15,657.31x = 193,195,055.96
  5. Step 5: Solve for x
    x = 193,195,055.96/15,657.31
  6. Step 6: Final answer
    x = 12,338.97

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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.