Home / 14,188.03-19,579.25-7,815.23

Finding the Fourth Proportional to 14,188.03, 19,579.25 and 7,815.23

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Solution

The fourth proportional to 14,188.03, 19,579.25 and 7,815.23 is: 10,784.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.03 : 19,579.25 = 7,815.23 : x
  2. Step 2: Convert to fraction form
    14,188.03/19,579.25 = 7,815.23/x
  3. Step 3: Cross multiply
    14,188.03x = 19,579.25 × 7,815.23
  4. Step 4: Simplify right side
    14,188.03x = 153,016,341.98
  5. Step 5: Solve for x
    x = 153,016,341.98/14,188.03
  6. Step 6: Final answer
    x = 10,784.89

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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.