Home / 9,420.90-14,112.18-7,561.95

Finding the Fourth Proportional to 9,420.90, 14,112.18 and 7,561.95

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Solution

The fourth proportional to 9,420.90, 14,112.18 and 7,561.95 is: 11,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.90 : 14,112.18 = 7,561.95 : x
  2. Step 2: Convert to fraction form
    9,420.90/14,112.18 = 7,561.95/x
  3. Step 3: Cross multiply
    9,420.90x = 14,112.18 × 7,561.95
  4. Step 4: Simplify right side
    9,420.90x = 106,715,599.55
  5. Step 5: Solve for x
    x = 106,715,599.55/9,420.90
  6. Step 6: Final answer
    x = 11,327.54

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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.