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Finding the Fourth Proportional to 11,353.80, 17,030.70 and 5,805.30

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Solution

The fourth proportional to 11,353.80, 17,030.70 and 5,805.30 is: 8,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.80 : 17,030.70 = 5,805.30 : x
  2. Step 2: Convert to fraction form
    11,353.80/17,030.70 = 5,805.30/x
  3. Step 3: Cross multiply
    11,353.80x = 17,030.70 × 5,805.30
  4. Step 4: Simplify right side
    11,353.80x = 98,868,322.71
  5. Step 5: Solve for x
    x = 98,868,322.71/11,353.80
  6. Step 6: Final answer
    x = 8,707.95

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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.