Home / 12,071,739.40-18,107,609.10-9,237,387.40

Finding the Fourth Proportional to 12,071,739.40, 18,107,609.10 and 9,237,387.40

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Solution

The fourth proportional to 12,071,739.40, 18,107,609.10 and 9,237,387.40 is: 13,856,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,739.40 : 18,107,609.10 = 9,237,387.40 : x
  2. Step 2: Convert to fraction form
    12,071,739.40/18,107,609.10 = 9,237,387.40/x
  3. Step 3: Cross multiply
    12,071,739.40x = 18,107,609.10 × 9,237,387.40
  4. Step 4: Simplify right side
    12,071,739.40x = 167,267,000,144,465.38
  5. Step 5: Solve for x
    x = 167,267,000,144,465.38/12,071,739.40
  6. Step 6: Final answer
    x = 13,856,081.10

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Similar ratio
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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.