Home / 15,320.94-21,140.34-9,034.56

Finding the Fourth Proportional to 15,320.94, 21,140.34 and 9,034.56

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Solution

The fourth proportional to 15,320.94, 21,140.34 and 9,034.56 is: 12,466.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320.94 : 21,140.34 = 9,034.56 : x
  2. Step 2: Convert to fraction form
    15,320.94/21,140.34 = 9,034.56/x
  3. Step 3: Cross multiply
    15,320.94x = 21,140.34 × 9,034.56
  4. Step 4: Simplify right side
    15,320.94x = 190,993,670.15
  5. Step 5: Solve for x
    x = 190,993,670.15/15,320.94
  6. Step 6: Final answer
    x = 12,466.18

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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.