Home / 13,925.94-19,221.39-8,617.74

Finding the Fourth Proportional to 13,925.94, 19,221.39 and 8,617.74

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Solution

The fourth proportional to 13,925.94, 19,221.39 and 8,617.74 is: 11,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.94 : 19,221.39 = 8,617.74 : x
  2. Step 2: Convert to fraction form
    13,925.94/19,221.39 = 8,617.74/x
  3. Step 3: Cross multiply
    13,925.94x = 19,221.39 × 8,617.74
  4. Step 4: Simplify right side
    13,925.94x = 165,644,941.46
  5. Step 5: Solve for x
    x = 165,644,941.46/13,925.94
  6. Step 6: Final answer
    x = 11,894.70

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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.