Home / 15,522.11-21,424.63-9,558.77

Finding the Fourth Proportional to 15,522.11, 21,424.63 and 9,558.77

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Solution

The fourth proportional to 15,522.11, 21,424.63 and 9,558.77 is: 13,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.11 : 21,424.63 = 9,558.77 : x
  2. Step 2: Convert to fraction form
    15,522.11/21,424.63 = 9,558.77/x
  3. Step 3: Cross multiply
    15,522.11x = 21,424.63 × 9,558.77
  4. Step 4: Simplify right side
    15,522.11x = 204,793,062.71
  5. Step 5: Solve for x
    x = 204,793,062.71/15,522.11
  6. Step 6: Final answer
    x = 13,193.64

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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.