Home / 9,825.90-13,561.48-6,288.98

Finding the Fourth Proportional to 9,825.90, 13,561.48 and 6,288.98

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Solution

The fourth proportional to 9,825.90, 13,561.48 and 6,288.98 is: 8,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,825.90 : 13,561.48 = 6,288.98 : x
  2. Step 2: Convert to fraction form
    9,825.90/13,561.48 = 6,288.98/x
  3. Step 3: Cross multiply
    9,825.90x = 13,561.48 × 6,288.98
  4. Step 4: Simplify right side
    9,825.90x = 85,287,876.49
  5. Step 5: Solve for x
    x = 85,287,876.49/9,825.90
  6. Step 6: Final answer
    x = 8,679.90

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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.