Home / 13,555.62-18,707.52-7,587.54

Finding the Fourth Proportional to 13,555.62, 18,707.52 and 7,587.54

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Solution

The fourth proportional to 13,555.62, 18,707.52 and 7,587.54 is: 10,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.62 : 18,707.52 = 7,587.54 : x
  2. Step 2: Convert to fraction form
    13,555.62/18,707.52 = 7,587.54/x
  3. Step 3: Cross multiply
    13,555.62x = 18,707.52 × 7,587.54
  4. Step 4: Simplify right side
    13,555.62x = 141,944,056.30
  5. Step 5: Solve for x
    x = 141,944,056.30/13,555.62
  6. Step 6: Final answer
    x = 10,471.23

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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.