Home / 13,590.27-18,758.70-7,926.57

Finding the Fourth Proportional to 13,590.27, 18,758.70 and 7,926.57

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Solution

The fourth proportional to 13,590.27, 18,758.70 and 7,926.57 is: 10,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.27 : 18,758.70 = 7,926.57 : x
  2. Step 2: Convert to fraction form
    13,590.27/18,758.70 = 7,926.57/x
  3. Step 3: Cross multiply
    13,590.27x = 18,758.70 × 7,926.57
  4. Step 4: Simplify right side
    13,590.27x = 148,692,148.66
  5. Step 5: Solve for x
    x = 148,692,148.66/13,590.27
  6. Step 6: Final answer
    x = 10,941.07

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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.