Home / 15,317.20-21,134.55-9,026.20

Finding the Fourth Proportional to 15,317.20, 21,134.55 and 9,026.20

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Solution

The fourth proportional to 15,317.20, 21,134.55 and 9,026.20 is: 12,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.20 : 21,134.55 = 9,026.20 : x
  2. Step 2: Convert to fraction form
    15,317.20/21,134.55 = 9,026.20/x
  3. Step 3: Cross multiply
    15,317.20x = 21,134.55 × 9,026.20
  4. Step 4: Simplify right side
    15,317.20x = 190,764,675.21
  5. Step 5: Solve for x
    x = 190,764,675.21/15,317.20
  6. Step 6: Final answer
    x = 12,454.28

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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.