Home / 13,207.56-18,226.57-7,239.10

Finding the Fourth Proportional to 13,207.56, 18,226.57 and 7,239.10

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Solution

The fourth proportional to 13,207.56, 18,226.57 and 7,239.10 is: 9,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.56 : 18,226.57 = 7,239.10 : x
  2. Step 2: Convert to fraction form
    13,207.56/18,226.57 = 7,239.10/x
  3. Step 3: Cross multiply
    13,207.56x = 18,226.57 × 7,239.10
  4. Step 4: Simplify right side
    13,207.56x = 131,943,962.89
  5. Step 5: Solve for x
    x = 131,943,962.89/13,207.56
  6. Step 6: Final answer
    x = 9,990.03

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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.