Home / 15,876.41-21,899.48-10,218.51

Finding the Fourth Proportional to 15,876.41, 21,899.48 and 10,218.51

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Solution

The fourth proportional to 15,876.41, 21,899.48 and 10,218.51 is: 14,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.41 : 21,899.48 = 10,218.51 : x
  2. Step 2: Convert to fraction form
    15,876.41/21,899.48 = 10,218.51/x
  3. Step 3: Cross multiply
    15,876.41x = 21,899.48 × 10,218.51
  4. Step 4: Simplify right side
    15,876.41x = 223,780,004.28
  5. Step 5: Solve for x
    x = 223,780,004.28/15,876.41
  6. Step 6: Final answer
    x = 14,095.13

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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.