Home / 9,686.40-14,529.60-2,666.40

Finding the Fourth Proportional to 9,686.40, 14,529.60 and 2,666.40

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Solution

The fourth proportional to 9,686.40, 14,529.60 and 2,666.40 is: 3,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,686.40 : 14,529.60 = 2,666.40 : x
  2. Step 2: Convert to fraction form
    9,686.40/14,529.60 = 2,666.40/x
  3. Step 3: Cross multiply
    9,686.40x = 14,529.60 × 2,666.40
  4. Step 4: Simplify right side
    9,686.40x = 38,741,725.44
  5. Step 5: Solve for x
    x = 38,741,725.44/9,686.40
  6. Step 6: Final answer
    x = 3,999.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.