Home / 13,056.40-19,573.80-6,900.40

Finding the Fourth Proportional to 13,056.40, 19,573.80 and 6,900.40

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Solution

The fourth proportional to 13,056.40, 19,573.80 and 6,900.40 is: 10,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.40 : 19,573.80 = 6,900.40 : x
  2. Step 2: Convert to fraction form
    13,056.40/19,573.80 = 6,900.40/x
  3. Step 3: Cross multiply
    13,056.40x = 19,573.80 × 6,900.40
  4. Step 4: Simplify right side
    13,056.40x = 135,067,049.52
  5. Step 5: Solve for x
    x = 135,067,049.52/13,056.40
  6. Step 6: Final answer
    x = 10,344.89

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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.