Home / 15,581.36-21,494.80-11,325.82

Finding the Fourth Proportional to 15,581.36, 21,494.80 and 11,325.82

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Solution

The fourth proportional to 15,581.36, 21,494.80 and 11,325.82 is: 15,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.36 : 21,494.80 = 11,325.82 : x
  2. Step 2: Convert to fraction form
    15,581.36/21,494.80 = 11,325.82/x
  3. Step 3: Cross multiply
    15,581.36x = 21,494.80 × 11,325.82
  4. Step 4: Simplify right side
    15,581.36x = 243,446,235.74
  5. Step 5: Solve for x
    x = 243,446,235.74/15,581.36
  6. Step 6: Final answer
    x = 15,624.20

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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.