Home / 15,349.74-21,182.43-8,635.37

Finding the Fourth Proportional to 15,349.74, 21,182.43 and 8,635.37

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Solution

The fourth proportional to 15,349.74, 21,182.43 and 8,635.37 is: 11,916.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.74 : 21,182.43 = 8,635.37 : x
  2. Step 2: Convert to fraction form
    15,349.74/21,182.43 = 8,635.37/x
  3. Step 3: Cross multiply
    15,349.74x = 21,182.43 × 8,635.37
  4. Step 4: Simplify right side
    15,349.74x = 182,918,014.64
  5. Step 5: Solve for x
    x = 182,918,014.64/15,349.74
  6. Step 6: Final answer
    x = 11,916.68

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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.