Home / 13,115.26-19,678.28-9,623.08

Finding the Fourth Proportional to 13,115.26, 19,678.28 and 9,623.08

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Solution

The fourth proportional to 13,115.26, 19,678.28 and 9,623.08 is: 14,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.26 : 19,678.28 = 9,623.08 : x
  2. Step 2: Convert to fraction form
    13,115.26/19,678.28 = 9,623.08/x
  3. Step 3: Cross multiply
    13,115.26x = 19,678.28 × 9,623.08
  4. Step 4: Simplify right side
    13,115.26x = 189,365,565.39
  5. Step 5: Solve for x
    x = 189,365,565.39/13,115.26
  6. Step 6: Final answer
    x = 14,438.57

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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.