Home / 13,214.80-18,236.56-7,246.32

Finding the Fourth Proportional to 13,214.80, 18,236.56 and 7,246.32

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Solution

The fourth proportional to 13,214.80, 18,236.56 and 7,246.32 is: 10,000.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.80 : 18,236.56 = 7,246.32 : x
  2. Step 2: Convert to fraction form
    13,214.80/18,236.56 = 7,246.32/x
  3. Step 3: Cross multiply
    13,214.80x = 18,236.56 × 7,246.32
  4. Step 4: Simplify right side
    13,214.80x = 132,147,949.46
  5. Step 5: Solve for x
    x = 132,147,949.46/13,214.80
  6. Step 6: Final answer
    x = 10,000.00

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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.