Home / 9,643.20-14,436.45-7,188.90

Finding the Fourth Proportional to 9,643.20, 14,436.45 and 7,188.90

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Solution

The fourth proportional to 9,643.20, 14,436.45 and 7,188.90 is: 10,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.20 : 14,436.45 = 7,188.90 : x
  2. Step 2: Convert to fraction form
    9,643.20/14,436.45 = 7,188.90/x
  3. Step 3: Cross multiply
    9,643.20x = 14,436.45 × 7,188.90
  4. Step 4: Simplify right side
    9,643.20x = 103,782,195.41
  5. Step 5: Solve for x
    x = 103,782,195.41/9,643.20
  6. Step 6: Final answer
    x = 10,762.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.