Home / 13,456-18,569.28-7,867.04

Finding the Fourth Proportional to 13,456, 18,569.28 and 7,867.04

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Solution

The fourth proportional to 13,456, 18,569.28 and 7,867.04 is: 10,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456 : 18,569.28 = 7,867.04 : x
  2. Step 2: Convert to fraction form
    13,456/18,569.28 = 7,867.04/x
  3. Step 3: Cross multiply
    13,456x = 18,569.28 × 7,867.04
  4. Step 4: Simplify right side
    13,456x = 146,085,268.53
  5. Step 5: Solve for x
    x = 146,085,268.53/13,456
  6. Step 6: Final answer
    x = 10,856.52

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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.