Home / 15,317.50-21,129.96-10,273.06

Finding the Fourth Proportional to 15,317.50, 21,129.96 and 10,273.06

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Solution

The fourth proportional to 15,317.50, 21,129.96 and 10,273.06 is: 14,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.50 : 21,129.96 = 10,273.06 : x
  2. Step 2: Convert to fraction form
    15,317.50/21,129.96 = 10,273.06/x
  3. Step 3: Cross multiply
    15,317.50x = 21,129.96 × 10,273.06
  4. Step 4: Simplify right side
    15,317.50x = 217,069,346.88
  5. Step 5: Solve for x
    x = 217,069,346.88/15,317.50
  6. Step 6: Final answer
    x = 14,171.33

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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.