Home / 9,960.95-13,745.89-5,712.77

Finding the Fourth Proportional to 9,960.95, 13,745.89 and 5,712.77

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Solution

The fourth proportional to 9,960.95, 13,745.89 and 5,712.77 is: 7,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.95 : 13,745.89 = 5,712.77 : x
  2. Step 2: Convert to fraction form
    9,960.95/13,745.89 = 5,712.77/x
  3. Step 3: Cross multiply
    9,960.95x = 13,745.89 × 5,712.77
  4. Step 4: Simplify right side
    9,960.95x = 78,527,108.02
  5. Step 5: Solve for x
    x = 78,527,108.02/9,960.95
  6. Step 6: Final answer
    x = 7,883.50

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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.