Home / 15,916.66-21,971.72-10,743.65

Finding the Fourth Proportional to 15,916.66, 21,971.72 and 10,743.65

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Solution

The fourth proportional to 15,916.66, 21,971.72 and 10,743.65 is: 14,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.66 : 21,971.72 = 10,743.65 : x
  2. Step 2: Convert to fraction form
    15,916.66/21,971.72 = 10,743.65/x
  3. Step 3: Cross multiply
    15,916.66x = 21,971.72 × 10,743.65
  4. Step 4: Simplify right side
    15,916.66x = 236,056,551.37
  5. Step 5: Solve for x
    x = 236,056,551.37/15,916.66
  6. Step 6: Final answer
    x = 14,830.79

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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.