Home / 15,307.42-21,123.38-8,592.44

Finding the Fourth Proportional to 15,307.42, 21,123.38 and 8,592.44

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Solution

The fourth proportional to 15,307.42, 21,123.38 and 8,592.44 is: 11,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.42 : 21,123.38 = 8,592.44 : x
  2. Step 2: Convert to fraction form
    15,307.42/21,123.38 = 8,592.44/x
  3. Step 3: Cross multiply
    15,307.42x = 21,123.38 × 8,592.44
  4. Step 4: Simplify right side
    15,307.42x = 181,501,375.25
  5. Step 5: Solve for x
    x = 181,501,375.25/15,307.42
  6. Step 6: Final answer
    x = 11,857.08

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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.