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Finding the Fourth Proportional to 9,840.04, 13,579.06 and 5,363.84

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Solution

The fourth proportional to 9,840.04, 13,579.06 and 5,363.84 is: 7,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.04 : 13,579.06 = 5,363.84 : x
  2. Step 2: Convert to fraction form
    9,840.04/13,579.06 = 5,363.84/x
  3. Step 3: Cross multiply
    9,840.04x = 13,579.06 × 5,363.84
  4. Step 4: Simplify right side
    9,840.04x = 72,835,905.19
  5. Step 5: Solve for x
    x = 72,835,905.19/9,840.04
  6. Step 6: Final answer
    x = 7,401.99

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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.