Home / 9,072.90-12,514.50-7,394.40

Finding the Fourth Proportional to 9,072.90, 12,514.50 and 7,394.40

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Solution

The fourth proportional to 9,072.90, 12,514.50 and 7,394.40 is: 10,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.90 : 12,514.50 = 7,394.40 : x
  2. Step 2: Convert to fraction form
    9,072.90/12,514.50 = 7,394.40/x
  3. Step 3: Cross multiply
    9,072.90x = 12,514.50 × 7,394.40
  4. Step 4: Simplify right side
    9,072.90x = 92,537,218.80
  5. Step 5: Solve for x
    x = 92,537,218.80/9,072.90
  6. Step 6: Final answer
    x = 10,199.30

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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.