Home / 15,433.75-21,298.73-8,360.34

Finding the Fourth Proportional to 15,433.75, 21,298.73 and 8,360.34

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Solution

The fourth proportional to 15,433.75, 21,298.73 and 8,360.34 is: 11,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.75 : 21,298.73 = 8,360.34 : x
  2. Step 2: Convert to fraction form
    15,433.75/21,298.73 = 8,360.34/x
  3. Step 3: Cross multiply
    15,433.75x = 21,298.73 × 8,360.34
  4. Step 4: Simplify right side
    15,433.75x = 178,064,624.37
  5. Step 5: Solve for x
    x = 178,064,624.37/15,433.75
  6. Step 6: Final answer
    x = 11,537.35

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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.