Home / 7,844.41-10,815.01-5,720.46

Finding the Fourth Proportional to 7,844.41, 10,815.01 and 5,720.46

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Solution

The fourth proportional to 7,844.41, 10,815.01 and 5,720.46 is: 7,886.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.41 : 10,815.01 = 5,720.46 : x
  2. Step 2: Convert to fraction form
    7,844.41/10,815.01 = 5,720.46/x
  3. Step 3: Cross multiply
    7,844.41x = 10,815.01 × 5,720.46
  4. Step 4: Simplify right side
    7,844.41x = 61,866,832.10
  5. Step 5: Solve for x
    x = 61,866,832.10/7,844.41
  6. Step 6: Final answer
    x = 7,886.74

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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.