Home / 14,178.28-19,567.98-8,211.82

Finding the Fourth Proportional to 14,178.28, 19,567.98 and 8,211.82

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Solution

The fourth proportional to 14,178.28, 19,567.98 and 8,211.82 is: 11,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.28 : 19,567.98 = 8,211.82 : x
  2. Step 2: Convert to fraction form
    14,178.28/19,567.98 = 8,211.82/x
  3. Step 3: Cross multiply
    14,178.28x = 19,567.98 × 8,211.82
  4. Step 4: Simplify right side
    14,178.28x = 160,688,729.52
  5. Step 5: Solve for x
    x = 160,688,729.52/14,178.28
  6. Step 6: Final answer
    x = 11,333.44

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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.