Home / 13,425.21-18,526.05-7,456.59

Finding the Fourth Proportional to 13,425.21, 18,526.05 and 7,456.59

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Solution

The fourth proportional to 13,425.21, 18,526.05 and 7,456.59 is: 10,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.21 : 18,526.05 = 7,456.59 : x
  2. Step 2: Convert to fraction form
    13,425.21/18,526.05 = 7,456.59/x
  3. Step 3: Cross multiply
    13,425.21x = 18,526.05 × 7,456.59
  4. Step 4: Simplify right side
    13,425.21x = 138,141,159.17
  5. Step 5: Solve for x
    x = 138,141,159.17/13,425.21
  6. Step 6: Final answer
    x = 10,289.68

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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.