Home / 12,271.12-18,405.66-7,337.16

Finding the Fourth Proportional to 12,271.12, 18,405.66 and 7,337.16

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Solution

The fourth proportional to 12,271.12, 18,405.66 and 7,337.16 is: 11,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.12 : 18,405.66 = 7,337.16 : x
  2. Step 2: Convert to fraction form
    12,271.12/18,405.66 = 7,337.16/x
  3. Step 3: Cross multiply
    12,271.12x = 18,405.66 × 7,337.16
  4. Step 4: Simplify right side
    12,271.12x = 135,045,186.17
  5. Step 5: Solve for x
    x = 135,045,186.17/12,271.12
  6. Step 6: Final answer
    x = 11,005.12

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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.