Home / 9,278.95-13,899.57-7,408.00

Finding the Fourth Proportional to 9,278.95, 13,899.57 and 7,408.00

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Solution

The fourth proportional to 9,278.95, 13,899.57 and 7,408.00 is: 11,096.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.95 : 13,899.57 = 7,408.00 : x
  2. Step 2: Convert to fraction form
    9,278.95/13,899.57 = 7,408.00/x
  3. Step 3: Cross multiply
    9,278.95x = 13,899.57 × 7,408.00
  4. Step 4: Simplify right side
    9,278.95x = 102,968,045.82
  5. Step 5: Solve for x
    x = 102,968,045.82/9,278.95
  6. Step 6: Final answer
    x = 11,096.95

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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.