Home / 18,721.60-25,835.56-10,224.51

Finding the Fourth Proportional to 18,721.60, 25,835.56 and 10,224.51

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Solution

The fourth proportional to 18,721.60, 25,835.56 and 10,224.51 is: 14,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.60 : 25,835.56 = 10,224.51 : x
  2. Step 2: Convert to fraction form
    18,721.60/25,835.56 = 10,224.51/x
  3. Step 3: Cross multiply
    18,721.60x = 25,835.56 × 10,224.51
  4. Step 4: Simplify right side
    18,721.60x = 264,155,941.58
  5. Step 5: Solve for x
    x = 264,155,941.58/18,721.60
  6. Step 6: Final answer
    x = 14,109.69

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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.