Home / 15,500.31-21,354.26-10,776.39

Finding the Fourth Proportional to 15,500.31, 21,354.26 and 10,776.39

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Solution

The fourth proportional to 15,500.31, 21,354.26 and 10,776.39 is: 14,846.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500.31 : 21,354.26 = 10,776.39 : x
  2. Step 2: Convert to fraction form
    15,500.31/21,354.26 = 10,776.39/x
  3. Step 3: Cross multiply
    15,500.31x = 21,354.26 × 10,776.39
  4. Step 4: Simplify right side
    15,500.31x = 230,121,727.15
  5. Step 5: Solve for x
    x = 230,121,727.15/15,500.31
  6. Step 6: Final answer
    x = 14,846.27

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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.