Home / 19,071.72-26,321.22-10,686.60

Finding the Fourth Proportional to 19,071.72, 26,321.22 and 10,686.60

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Solution

The fourth proportional to 19,071.72, 26,321.22 and 10,686.60 is: 14,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.72 : 26,321.22 = 10,686.60 : x
  2. Step 2: Convert to fraction form
    19,071.72/26,321.22 = 10,686.60/x
  3. Step 3: Cross multiply
    19,071.72x = 26,321.22 × 10,686.60
  4. Step 4: Simplify right side
    19,071.72x = 281,284,349.65
  5. Step 5: Solve for x
    x = 281,284,349.65/19,071.72
  6. Step 6: Final answer
    x = 14,748.77

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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.