Home / 15,226.30-21,011.90-8,512.01

Finding the Fourth Proportional to 15,226.30, 21,011.90 and 8,512.01

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Solution

The fourth proportional to 15,226.30, 21,011.90 and 8,512.01 is: 11,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.30 : 21,011.90 = 8,512.01 : x
  2. Step 2: Convert to fraction form
    15,226.30/21,011.90 = 8,512.01/x
  3. Step 3: Cross multiply
    15,226.30x = 21,011.90 × 8,512.01
  4. Step 4: Simplify right side
    15,226.30x = 178,853,502.92
  5. Step 5: Solve for x
    x = 178,853,502.92/15,226.30
  6. Step 6: Final answer
    x = 11,746.35

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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.