Home / 8,487.27-11,711.36-4,709.91

Finding the Fourth Proportional to 8,487.27, 11,711.36 and 4,709.91

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Solution

The fourth proportional to 8,487.27, 11,711.36 and 4,709.91 is: 6,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.27 : 11,711.36 = 4,709.91 : x
  2. Step 2: Convert to fraction form
    8,487.27/11,711.36 = 4,709.91/x
  3. Step 3: Cross multiply
    8,487.27x = 11,711.36 × 4,709.91
  4. Step 4: Simplify right side
    8,487.27x = 55,159,429.71
  5. Step 5: Solve for x
    x = 55,159,429.71/8,487.27
  6. Step 6: Final answer
    x = 6,499.08

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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.