Home / 8,487.15-11,709.61-4,901.65

Finding the Fourth Proportional to 8,487.15, 11,709.61 and 4,901.65

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Solution

The fourth proportional to 8,487.15, 11,709.61 and 4,901.65 is: 6,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.15 : 11,709.61 = 4,901.65 : x
  2. Step 2: Convert to fraction form
    8,487.15/11,709.61 = 4,901.65/x
  3. Step 3: Cross multiply
    8,487.15x = 11,709.61 × 4,901.65
  4. Step 4: Simplify right side
    8,487.15x = 57,396,409.86
  5. Step 5: Solve for x
    x = 57,396,409.86/8,487.15
  6. Step 6: Final answer
    x = 6,762.74

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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.