Home / 8,275.64-11,420.07-4,739.18

Finding the Fourth Proportional to 8,275.64, 11,420.07 and 4,739.18

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Solution

The fourth proportional to 8,275.64, 11,420.07 and 4,739.18 is: 6,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.64 : 11,420.07 = 4,739.18 : x
  2. Step 2: Convert to fraction form
    8,275.64/11,420.07 = 4,739.18/x
  3. Step 3: Cross multiply
    8,275.64x = 11,420.07 × 4,739.18
  4. Step 4: Simplify right side
    8,275.64x = 54,121,767.34
  5. Step 5: Solve for x
    x = 54,121,767.34/8,275.64
  6. Step 6: Final answer
    x = 6,539.89

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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.