Home / 9,864.99-13,611.85-6,091.40

Finding the Fourth Proportional to 9,864.99, 13,611.85 and 6,091.40

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Solution

The fourth proportional to 9,864.99, 13,611.85 and 6,091.40 is: 8,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.99 : 13,611.85 = 6,091.40 : x
  2. Step 2: Convert to fraction form
    9,864.99/13,611.85 = 6,091.40/x
  3. Step 3: Cross multiply
    9,864.99x = 13,611.85 × 6,091.40
  4. Step 4: Simplify right side
    9,864.99x = 82,915,241.89
  5. Step 5: Solve for x
    x = 82,915,241.89/9,864.99
  6. Step 6: Final answer
    x = 8,405.00

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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.