Home / 13,425.37-18,527.35-7,456.75

Finding the Fourth Proportional to 13,425.37, 18,527.35 and 7,456.75

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Solution

The fourth proportional to 13,425.37, 18,527.35 and 7,456.75 is: 10,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.37 : 18,527.35 = 7,456.75 : x
  2. Step 2: Convert to fraction form
    13,425.37/18,527.35 = 7,456.75/x
  3. Step 3: Cross multiply
    13,425.37x = 18,527.35 × 7,456.75
  4. Step 4: Simplify right side
    13,425.37x = 138,153,779.83
  5. Step 5: Solve for x
    x = 138,153,779.83/13,425.37
  6. Step 6: Final answer
    x = 10,290.50

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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.