Home / 11,551.10-15,956.33-8,931.56

Finding the Fourth Proportional to 11,551.10, 15,956.33 and 8,931.56

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Solution

The fourth proportional to 11,551.10, 15,956.33 and 8,931.56 is: 12,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.10 : 15,956.33 = 8,931.56 : x
  2. Step 2: Convert to fraction form
    11,551.10/15,956.33 = 8,931.56/x
  3. Step 3: Cross multiply
    11,551.10x = 15,956.33 × 8,931.56
  4. Step 4: Simplify right side
    11,551.10x = 142,514,794.34
  5. Step 5: Solve for x
    x = 142,514,794.34/11,551.10
  6. Step 6: Final answer
    x = 12,337.77

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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.