Home / 6,618.76-9,908.70-5,222.32

Finding the Fourth Proportional to 6,618.76, 9,908.70 and 5,222.32

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Solution

The fourth proportional to 6,618.76, 9,908.70 and 5,222.32 is: 7,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.76 : 9,908.70 = 5,222.32 : x
  2. Step 2: Convert to fraction form
    6,618.76/9,908.70 = 5,222.32/x
  3. Step 3: Cross multiply
    6,618.76x = 9,908.70 × 5,222.32
  4. Step 4: Simplify right side
    6,618.76x = 51,746,402.18
  5. Step 5: Solve for x
    x = 51,746,402.18/6,618.76
  6. Step 6: Final answer
    x = 7,818.14

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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.