Home / 15,854.51-21,869.33-10,196.64

Finding the Fourth Proportional to 15,854.51, 21,869.33 and 10,196.64

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Solution

The fourth proportional to 15,854.51, 21,869.33 and 10,196.64 is: 14,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854.51 : 21,869.33 = 10,196.64 : x
  2. Step 2: Convert to fraction form
    15,854.51/21,869.33 = 10,196.64/x
  3. Step 3: Cross multiply
    15,854.51x = 21,869.33 × 10,196.64
  4. Step 4: Simplify right side
    15,854.51x = 222,993,634.07
  5. Step 5: Solve for x
    x = 222,993,634.07/15,854.51
  6. Step 6: Final answer
    x = 14,064.99

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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.