Home / 9,960.40-13,745.53-5,711.46

Finding the Fourth Proportional to 9,960.40, 13,745.53 and 5,711.46

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Solution

The fourth proportional to 9,960.40, 13,745.53 and 5,711.46 is: 7,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.40 : 13,745.53 = 5,711.46 : x
  2. Step 2: Convert to fraction form
    9,960.40/13,745.53 = 5,711.46/x
  3. Step 3: Cross multiply
    9,960.40x = 13,745.53 × 5,711.46
  4. Step 4: Simplify right side
    9,960.40x = 78,506,961.77
  5. Step 5: Solve for x
    x = 78,506,961.77/9,960.40
  6. Step 6: Final answer
    x = 7,881.91

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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.