Home / 8,941.98-12,339.57-5,166.21

Finding the Fourth Proportional to 8,941.98, 12,339.57 and 5,166.21

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Solution

The fourth proportional to 8,941.98, 12,339.57 and 5,166.21 is: 7,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.98 : 12,339.57 = 5,166.21 : x
  2. Step 2: Convert to fraction form
    8,941.98/12,339.57 = 5,166.21/x
  3. Step 3: Cross multiply
    8,941.98x = 12,339.57 × 5,166.21
  4. Step 4: Simplify right side
    8,941.98x = 63,748,831.99
  5. Step 5: Solve for x
    x = 63,748,831.99/8,941.98
  6. Step 6: Final answer
    x = 7,129.16

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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.