Home / 13,743.61-18,966.23-7,456.03

Finding the Fourth Proportional to 13,743.61, 18,966.23 and 7,456.03

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Solution

The fourth proportional to 13,743.61, 18,966.23 and 7,456.03 is: 10,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.61 : 18,966.23 = 7,456.03 : x
  2. Step 2: Convert to fraction form
    13,743.61/18,966.23 = 7,456.03/x
  3. Step 3: Cross multiply
    13,743.61x = 18,966.23 × 7,456.03
  4. Step 4: Simplify right side
    13,743.61x = 141,412,779.87
  5. Step 5: Solve for x
    x = 141,412,779.87/13,743.61
  6. Step 6: Final answer
    x = 10,289.35

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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.