Home / 9,099.58-12,557.28-5,120.70

Finding the Fourth Proportional to 9,099.58, 12,557.28 and 5,120.70

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Solution

The fourth proportional to 9,099.58, 12,557.28 and 5,120.70 is: 7,066.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,099.58 : 12,557.28 = 5,120.70 : x
  2. Step 2: Convert to fraction form
    9,099.58/12,557.28 = 5,120.70/x
  3. Step 3: Cross multiply
    9,099.58x = 12,557.28 × 5,120.70
  4. Step 4: Simplify right side
    9,099.58x = 64,302,063.70
  5. Step 5: Solve for x
    x = 64,302,063.70/9,099.58
  6. Step 6: Final answer
    x = 7,066.49

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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.