Home / 13,774.53-18,982.20-9,290.50

Finding the Fourth Proportional to 13,774.53, 18,982.20 and 9,290.50

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Solution

The fourth proportional to 13,774.53, 18,982.20 and 9,290.50 is: 12,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.53 : 18,982.20 = 9,290.50 : x
  2. Step 2: Convert to fraction form
    13,774.53/18,982.20 = 9,290.50/x
  3. Step 3: Cross multiply
    13,774.53x = 18,982.20 × 9,290.50
  4. Step 4: Simplify right side
    13,774.53x = 176,354,081.64
  5. Step 5: Solve for x
    x = 176,354,081.64/13,774.53
  6. Step 6: Final answer
    x = 12,802.91

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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.