Home / 8,487.12-11,711.91-4,710.45

Finding the Fourth Proportional to 8,487.12, 11,711.91 and 4,710.45

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Solution

The fourth proportional to 8,487.12, 11,711.91 and 4,710.45 is: 6,500.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.12 : 11,711.91 = 4,710.45 : x
  2. Step 2: Convert to fraction form
    8,487.12/11,711.91 = 4,710.45/x
  3. Step 3: Cross multiply
    8,487.12x = 11,711.91 × 4,710.45
  4. Step 4: Simplify right side
    8,487.12x = 55,168,366.46
  5. Step 5: Solve for x
    x = 55,168,366.46/8,487.12
  6. Step 6: Final answer
    x = 6,500.25

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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.