Home / 9,840.05-13,579.34-5,363.79

Finding the Fourth Proportional to 9,840.05, 13,579.34 and 5,363.79

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Solution

The fourth proportional to 9,840.05, 13,579.34 and 5,363.79 is: 7,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.05 : 13,579.34 = 5,363.79 : x
  2. Step 2: Convert to fraction form
    9,840.05/13,579.34 = 5,363.79/x
  3. Step 3: Cross multiply
    9,840.05x = 13,579.34 × 5,363.79
  4. Step 4: Simplify right side
    9,840.05x = 72,836,728.10
  5. Step 5: Solve for x
    x = 72,836,728.10/9,840.05
  6. Step 6: Final answer
    x = 7,402.07

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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.