Home / 9,405.60-14,087.20-7,309.28

Finding the Fourth Proportional to 9,405.60, 14,087.20 and 7,309.28

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Solution

The fourth proportional to 9,405.60, 14,087.20 and 7,309.28 is: 10,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405.60 : 14,087.20 = 7,309.28 : x
  2. Step 2: Convert to fraction form
    9,405.60/14,087.20 = 7,309.28/x
  3. Step 3: Cross multiply
    9,405.60x = 14,087.20 × 7,309.28
  4. Step 4: Simplify right side
    9,405.60x = 102,967,289.22
  5. Step 5: Solve for x
    x = 102,967,289.22/9,405.60
  6. Step 6: Final answer
    x = 10,947.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.