Home / 13,068.36-18,034.02-7,099.90

Finding the Fourth Proportional to 13,068.36, 18,034.02 and 7,099.90

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Solution

The fourth proportional to 13,068.36, 18,034.02 and 7,099.90 is: 9,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068.36 : 18,034.02 = 7,099.90 : x
  2. Step 2: Convert to fraction form
    13,068.36/18,034.02 = 7,099.90/x
  3. Step 3: Cross multiply
    13,068.36x = 18,034.02 × 7,099.90
  4. Step 4: Simplify right side
    13,068.36x = 128,039,738.60
  5. Step 5: Solve for x
    x = 128,039,738.60/13,068.36
  6. Step 6: Final answer
    x = 9,797.69

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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.