Home / 6,621.76-9,913.20-5,225.32

Finding the Fourth Proportional to 6,621.76, 9,913.20 and 5,225.32

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Solution

The fourth proportional to 6,621.76, 9,913.20 and 5,225.32 is: 7,822.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.76 : 9,913.20 = 5,225.32 : x
  2. Step 2: Convert to fraction form
    6,621.76/9,913.20 = 5,225.32/x
  3. Step 3: Cross multiply
    6,621.76x = 9,913.20 × 5,225.32
  4. Step 4: Simplify right side
    6,621.76x = 51,799,642.22
  5. Step 5: Solve for x
    x = 51,799,642.22/6,621.76
  6. Step 6: Final answer
    x = 7,822.64

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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.