Home / 13,743.52-18,966.29-7,455.89

Finding the Fourth Proportional to 13,743.52, 18,966.29 and 7,455.89

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Solution

The fourth proportional to 13,743.52, 18,966.29 and 7,455.89 is: 10,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.52 : 18,966.29 = 7,455.89 : x
  2. Step 2: Convert to fraction form
    13,743.52/18,966.29 = 7,455.89/x
  3. Step 3: Cross multiply
    13,743.52x = 18,966.29 × 7,455.89
  4. Step 4: Simplify right side
    13,743.52x = 141,410,582.08
  5. Step 5: Solve for x
    x = 141,410,582.08/13,743.52
  6. Step 6: Final answer
    x = 10,289.26

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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.