Home / 8,487.87-11,713.67-5,303.06

Finding the Fourth Proportional to 8,487.87, 11,713.67 and 5,303.06

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Solution

The fourth proportional to 8,487.87, 11,713.67 and 5,303.06 is: 7,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.87 : 11,713.67 = 5,303.06 : x
  2. Step 2: Convert to fraction form
    8,487.87/11,713.67 = 5,303.06/x
  3. Step 3: Cross multiply
    8,487.87x = 11,713.67 × 5,303.06
  4. Step 4: Simplify right side
    8,487.87x = 62,118,209.75
  5. Step 5: Solve for x
    x = 62,118,209.75/8,487.87
  6. Step 6: Final answer
    x = 7,318.47

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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.