Home / 13,121.10-19,684.45-4,801.08

Finding the Fourth Proportional to 13,121.10, 19,684.45 and 4,801.08

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Solution

The fourth proportional to 13,121.10, 19,684.45 and 4,801.08 is: 7,202.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.10 : 19,684.45 = 4,801.08 : x
  2. Step 2: Convert to fraction form
    13,121.10/19,684.45 = 4,801.08/x
  3. Step 3: Cross multiply
    13,121.10x = 19,684.45 × 4,801.08
  4. Step 4: Simplify right side
    13,121.10x = 94,506,619.21
  5. Step 5: Solve for x
    x = 94,506,619.21/13,121.10
  6. Step 6: Final answer
    x = 7,202.65

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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.