Home / 9,303.60-12,839.40-5,323.68

Finding the Fourth Proportional to 9,303.60, 12,839.40 and 5,323.68

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Solution

The fourth proportional to 9,303.60, 12,839.40 and 5,323.68 is: 7,346.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,303.60 : 12,839.40 = 5,323.68 : x
  2. Step 2: Convert to fraction form
    9,303.60/12,839.40 = 5,323.68/x
  3. Step 3: Cross multiply
    9,303.60x = 12,839.40 × 5,323.68
  4. Step 4: Simplify right side
    9,303.60x = 68,352,856.99
  5. Step 5: Solve for x
    x = 68,352,856.99/9,303.60
  6. Step 6: Final answer
    x = 7,346.93

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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.