Home / 13,200.15-18,216.65-7,232.16

Finding the Fourth Proportional to 13,200.15, 18,216.65 and 7,232.16

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Solution

The fourth proportional to 13,200.15, 18,216.65 and 7,232.16 is: 9,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.15 : 18,216.65 = 7,232.16 : x
  2. Step 2: Convert to fraction form
    13,200.15/18,216.65 = 7,232.16/x
  3. Step 3: Cross multiply
    13,200.15x = 18,216.65 × 7,232.16
  4. Step 4: Simplify right side
    13,200.15x = 131,745,727.46
  5. Step 5: Solve for x
    x = 131,745,727.46/13,200.15
  6. Step 6: Final answer
    x = 9,980.62

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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.