Home / 13,250.77-18,285.20-7,585.56

Finding the Fourth Proportional to 13,250.77, 18,285.20 and 7,585.56

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Solution

The fourth proportional to 13,250.77, 18,285.20 and 7,585.56 is: 10,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.77 : 18,285.20 = 7,585.56 : x
  2. Step 2: Convert to fraction form
    13,250.77/18,285.20 = 7,585.56/x
  3. Step 3: Cross multiply
    13,250.77x = 18,285.20 × 7,585.56
  4. Step 4: Simplify right side
    13,250.77x = 138,703,569.25
  5. Step 5: Solve for x
    x = 138,703,569.25/13,250.77
  6. Step 6: Final answer
    x = 10,467.58

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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.