Home / 7,926.90-10,939.15-4,390.03

Finding the Fourth Proportional to 7,926.90, 10,939.15 and 4,390.03

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Solution

The fourth proportional to 7,926.90, 10,939.15 and 4,390.03 is: 6,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.90 : 10,939.15 = 4,390.03 : x
  2. Step 2: Convert to fraction form
    7,926.90/10,939.15 = 4,390.03/x
  3. Step 3: Cross multiply
    7,926.90x = 10,939.15 × 4,390.03
  4. Step 4: Simplify right side
    7,926.90x = 48,023,196.67
  5. Step 5: Solve for x
    x = 48,023,196.67/7,926.90
  6. Step 6: Final answer
    x = 6,058.26

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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.