Home / 14,439.64-19,926.75-7,815.64

Finding the Fourth Proportional to 14,439.64, 19,926.75 and 7,815.64

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Solution

The fourth proportional to 14,439.64, 19,926.75 and 7,815.64 is: 10,785.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.64 : 19,926.75 = 7,815.64 : x
  2. Step 2: Convert to fraction form
    14,439.64/19,926.75 = 7,815.64/x
  3. Step 3: Cross multiply
    14,439.64x = 19,926.75 × 7,815.64
  4. Step 4: Simplify right side
    14,439.64x = 155,740,304.37
  5. Step 5: Solve for x
    x = 155,740,304.37/14,439.64
  6. Step 6: Final answer
    x = 10,785.61

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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.