Home / 15,433.08-21,297.64-8,359.54

Finding the Fourth Proportional to 15,433.08, 21,297.64 and 8,359.54

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Solution

The fourth proportional to 15,433.08, 21,297.64 and 8,359.54 is: 11,536.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.08 : 21,297.64 = 8,359.54 : x
  2. Step 2: Convert to fraction form
    15,433.08/21,297.64 = 8,359.54/x
  3. Step 3: Cross multiply
    15,433.08x = 21,297.64 × 8,359.54
  4. Step 4: Simplify right side
    15,433.08x = 178,038,473.49
  5. Step 5: Solve for x
    x = 178,038,473.49/15,433.08
  6. Step 6: Final answer
    x = 11,536.16

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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.