Home / 15,876.08-21,899.07-10,218.23

Finding the Fourth Proportional to 15,876.08, 21,899.07 and 10,218.23

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Solution

The fourth proportional to 15,876.08, 21,899.07 and 10,218.23 is: 14,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.08 : 21,899.07 = 10,218.23 : x
  2. Step 2: Convert to fraction form
    15,876.08/21,899.07 = 10,218.23/x
  3. Step 3: Cross multiply
    15,876.08x = 21,899.07 × 10,218.23
  4. Step 4: Simplify right side
    15,876.08x = 223,769,624.55
  5. Step 5: Solve for x
    x = 223,769,624.55/15,876.08
  6. Step 6: Final answer
    x = 14,094.77

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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.