Home / 9,099.02-12,555.63-5,121.50

Finding the Fourth Proportional to 9,099.02, 12,555.63 and 5,121.50

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Solution

The fourth proportional to 9,099.02, 12,555.63 and 5,121.50 is: 7,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.02 : 12,555.63 = 5,121.50 : x
  2. Step 2: Convert to fraction form
    9,099.02/12,555.63 = 5,121.50/x
  3. Step 3: Cross multiply
    9,099.02x = 12,555.63 × 5,121.50
  4. Step 4: Simplify right side
    9,099.02x = 64,303,659.05
  5. Step 5: Solve for x
    x = 64,303,659.05/9,099.02
  6. Step 6: Final answer
    x = 7,067.10

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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.