Home / 13,197.37-18,207.86-7,528.05

Finding the Fourth Proportional to 13,197.37, 18,207.86 and 7,528.05

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Solution

The fourth proportional to 13,197.37, 18,207.86 and 7,528.05 is: 10,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.37 : 18,207.86 = 7,528.05 : x
  2. Step 2: Convert to fraction form
    13,197.37/18,207.86 = 7,528.05/x
  3. Step 3: Cross multiply
    13,197.37x = 18,207.86 × 7,528.05
  4. Step 4: Simplify right side
    13,197.37x = 137,069,551.79
  5. Step 5: Solve for x
    x = 137,069,551.79/13,197.37
  6. Step 6: Final answer
    x = 10,386.13

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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.