Home / 6,520.40-9,008.88-5,133.68

Finding the Fourth Proportional to 6,520.40, 9,008.88 and 5,133.68

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Solution

The fourth proportional to 6,520.40, 9,008.88 and 5,133.68 is: 7,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.40 : 9,008.88 = 5,133.68 : x
  2. Step 2: Convert to fraction form
    6,520.40/9,008.88 = 5,133.68/x
  3. Step 3: Cross multiply
    6,520.40x = 9,008.88 × 5,133.68
  4. Step 4: Simplify right side
    6,520.40x = 46,248,707.08
  5. Step 5: Solve for x
    x = 46,248,707.08/6,520.40
  6. Step 6: Final answer
    x = 7,092.92

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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.