Home / 15,314.05-21,135.68-9,349.16

Finding the Fourth Proportional to 15,314.05, 21,135.68 and 9,349.16

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Solution

The fourth proportional to 15,314.05, 21,135.68 and 9,349.16 is: 12,903.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.05 : 21,135.68 = 9,349.16 : x
  2. Step 2: Convert to fraction form
    15,314.05/21,135.68 = 9,349.16/x
  3. Step 3: Cross multiply
    15,314.05x = 21,135.68 × 9,349.16
  4. Step 4: Simplify right side
    15,314.05x = 197,600,736.66
  5. Step 5: Solve for x
    x = 197,600,736.66/15,314.05
  6. Step 6: Final answer
    x = 12,903.23

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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.