Home / 6,719.76-10,062.60-5,621.40

Finding the Fourth Proportional to 6,719.76, 10,062.60 and 5,621.40

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Solution

The fourth proportional to 6,719.76, 10,062.60 and 5,621.40 is: 8,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.76 : 10,062.60 = 5,621.40 : x
  2. Step 2: Convert to fraction form
    6,719.76/10,062.60 = 5,621.40/x
  3. Step 3: Cross multiply
    6,719.76x = 10,062.60 × 5,621.40
  4. Step 4: Simplify right side
    6,719.76x = 56,565,899.64
  5. Step 5: Solve for x
    x = 56,565,899.64/6,719.76
  6. Step 6: Final answer
    x = 8,417.85

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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.