Home / 12,331.34-18,503.09-5,756.57

Finding the Fourth Proportional to 12,331.34, 18,503.09 and 5,756.57

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Solution

The fourth proportional to 12,331.34, 18,503.09 and 5,756.57 is: 8,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.34 : 18,503.09 = 5,756.57 : x
  2. Step 2: Convert to fraction form
    12,331.34/18,503.09 = 5,756.57/x
  3. Step 3: Cross multiply
    12,331.34x = 18,503.09 × 5,756.57
  4. Step 4: Simplify right side
    12,331.34x = 106,514,332.80
  5. Step 5: Solve for x
    x = 106,514,332.80/12,331.34
  6. Step 6: Final answer
    x = 8,637.69

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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.