Home / 13,756.40-18,984.12-8,095.28

Finding the Fourth Proportional to 13,756.40, 18,984.12 and 8,095.28

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Solution

The fourth proportional to 13,756.40, 18,984.12 and 8,095.28 is: 11,171.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.40 : 18,984.12 = 8,095.28 : x
  2. Step 2: Convert to fraction form
    13,756.40/18,984.12 = 8,095.28/x
  3. Step 3: Cross multiply
    13,756.40x = 18,984.12 × 8,095.28
  4. Step 4: Simplify right side
    13,756.40x = 153,681,766.95
  5. Step 5: Solve for x
    x = 153,681,766.95/13,756.40
  6. Step 6: Final answer
    x = 11,171.66

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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.