Home / 13,646.07-18,833.85-7,902.70

Finding the Fourth Proportional to 13,646.07, 18,833.85 and 7,902.70

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Solution

The fourth proportional to 13,646.07, 18,833.85 and 7,902.70 is: 10,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.07 : 18,833.85 = 7,902.70 : x
  2. Step 2: Convert to fraction form
    13,646.07/18,833.85 = 7,902.70/x
  3. Step 3: Cross multiply
    13,646.07x = 18,833.85 × 7,902.70
  4. Step 4: Simplify right side
    13,646.07x = 148,838,219.31
  5. Step 5: Solve for x
    x = 148,838,219.31/13,646.07
  6. Step 6: Final answer
    x = 10,907.04

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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.