Home / 7,899.48-10,899.90-5,808.60

Finding the Fourth Proportional to 7,899.48, 10,899.90 and 5,808.60

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Solution

The fourth proportional to 7,899.48, 10,899.90 and 5,808.60 is: 8,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.48 : 10,899.90 = 5,808.60 : x
  2. Step 2: Convert to fraction form
    7,899.48/10,899.90 = 5,808.60/x
  3. Step 3: Cross multiply
    7,899.48x = 10,899.90 × 5,808.60
  4. Step 4: Simplify right side
    7,899.48x = 63,313,159.14
  5. Step 5: Solve for x
    x = 63,313,159.14/7,899.48
  6. Step 6: Final answer
    x = 8,014.85

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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.