Home / 14,123.60-21,159.57-6,613.38

Finding the Fourth Proportional to 14,123.60, 21,159.57 and 6,613.38

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Solution

The fourth proportional to 14,123.60, 21,159.57 and 6,613.38 is: 9,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.60 : 21,159.57 = 6,613.38 : x
  2. Step 2: Convert to fraction form
    14,123.60/21,159.57 = 6,613.38/x
  3. Step 3: Cross multiply
    14,123.60x = 21,159.57 × 6,613.38
  4. Step 4: Simplify right side
    14,123.60x = 139,936,277.05
  5. Step 5: Solve for x
    x = 139,936,277.05/14,123.60
  6. Step 6: Final answer
    x = 9,907.98

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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.