Home / 9,901.19-13,663.23-5,919.95

Finding the Fourth Proportional to 9,901.19, 13,663.23 and 5,919.95

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Solution

The fourth proportional to 9,901.19, 13,663.23 and 5,919.95 is: 8,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,901.19 : 13,663.23 = 5,919.95 : x
  2. Step 2: Convert to fraction form
    9,901.19/13,663.23 = 5,919.95/x
  3. Step 3: Cross multiply
    9,901.19x = 13,663.23 × 5,919.95
  4. Step 4: Simplify right side
    9,901.19x = 80,885,570.12
  5. Step 5: Solve for x
    x = 80,885,570.12/9,901.19
  6. Step 6: Final answer
    x = 8,169.28

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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.