Home / 26,613.55-39,913.52-7,889.21

Finding the Fourth Proportional to 26,613.55, 39,913.52 and 7,889.21

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Solution

The fourth proportional to 26,613.55, 39,913.52 and 7,889.21 is: 11,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,613.55 : 39,913.52 = 7,889.21 : x
  2. Step 2: Convert to fraction form
    26,613.55/39,913.52 = 7,889.21/x
  3. Step 3: Cross multiply
    26,613.55x = 39,913.52 × 7,889.21
  4. Step 4: Simplify right side
    26,613.55x = 314,886,331.77
  5. Step 5: Solve for x
    x = 314,886,331.77/26,613.55
  6. Step 6: Final answer
    x = 11,831.80

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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.