Home / 15,865.32-21,887.98-10,199.31

Finding the Fourth Proportional to 15,865.32, 21,887.98 and 10,199.31

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Solution

The fourth proportional to 15,865.32, 21,887.98 and 10,199.31 is: 14,071.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.32 : 21,887.98 = 10,199.31 : x
  2. Step 2: Convert to fraction form
    15,865.32/21,887.98 = 10,199.31/x
  3. Step 3: Cross multiply
    15,865.32x = 21,887.98 × 10,199.31
  4. Step 4: Simplify right side
    15,865.32x = 223,242,293.29
  5. Step 5: Solve for x
    x = 223,242,293.29/15,865.32
  6. Step 6: Final answer
    x = 14,071.09

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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.