Home / 9,819.60-13,551.21-5,343.54

Finding the Fourth Proportional to 9,819.60, 13,551.21 and 5,343.54

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Solution

The fourth proportional to 9,819.60, 13,551.21 and 5,343.54 is: 7,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.60 : 13,551.21 = 5,343.54 : x
  2. Step 2: Convert to fraction form
    9,819.60/13,551.21 = 5,343.54/x
  3. Step 3: Cross multiply
    9,819.60x = 13,551.21 × 5,343.54
  4. Step 4: Simplify right side
    9,819.60x = 72,411,432.68
  5. Step 5: Solve for x
    x = 72,411,432.68/9,819.60
  6. Step 6: Final answer
    x = 7,374.17

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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.