Home / 13,585.48-18,743.70-7,616.28

Finding the Fourth Proportional to 13,585.48, 18,743.70 and 7,616.28

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Solution

The fourth proportional to 13,585.48, 18,743.70 and 7,616.28 is: 10,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.48 : 18,743.70 = 7,616.28 : x
  2. Step 2: Convert to fraction form
    13,585.48/18,743.70 = 7,616.28/x
  3. Step 3: Cross multiply
    13,585.48x = 18,743.70 × 7,616.28
  4. Step 4: Simplify right side
    13,585.48x = 142,757,267.44
  5. Step 5: Solve for x
    x = 142,757,267.44/13,585.48
  6. Step 6: Final answer
    x = 10,508.08

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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.