Home / 15,313.38-21,133.98-9,349.05

Finding the Fourth Proportional to 15,313.38, 21,133.98 and 9,349.05

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Solution

The fourth proportional to 15,313.38, 21,133.98 and 9,349.05 is: 12,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.38 : 21,133.98 = 9,349.05 : x
  2. Step 2: Convert to fraction form
    15,313.38/21,133.98 = 9,349.05/x
  3. Step 3: Cross multiply
    15,313.38x = 21,133.98 × 9,349.05
  4. Step 4: Simplify right side
    15,313.38x = 197,582,635.72
  5. Step 5: Solve for x
    x = 197,582,635.72/15,313.38
  6. Step 6: Final answer
    x = 12,902.61

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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.