Home / 19,142.65-26,416.94-10,645.55

Finding the Fourth Proportional to 19,142.65, 26,416.94 and 10,645.55

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Solution

The fourth proportional to 19,142.65, 26,416.94 and 10,645.55 is: 14,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.65 : 26,416.94 = 10,645.55 : x
  2. Step 2: Convert to fraction form
    19,142.65/26,416.94 = 10,645.55/x
  3. Step 3: Cross multiply
    19,142.65x = 26,416.94 × 10,645.55
  4. Step 4: Simplify right side
    19,142.65x = 281,222,855.62
  5. Step 5: Solve for x
    x = 281,222,855.62/19,142.65
  6. Step 6: Final answer
    x = 14,690.91

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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.