Home / 12,624.14-17,421.90-7,320.62

Finding the Fourth Proportional to 12,624.14, 17,421.90 and 7,320.62

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Solution

The fourth proportional to 12,624.14, 17,421.90 and 7,320.62 is: 10,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.14 : 17,421.90 = 7,320.62 : x
  2. Step 2: Convert to fraction form
    12,624.14/17,421.90 = 7,320.62/x
  3. Step 3: Cross multiply
    12,624.14x = 17,421.90 × 7,320.62
  4. Step 4: Simplify right side
    12,624.14x = 127,539,109.58
  5. Step 5: Solve for x
    x = 127,539,109.58/12,624.14
  6. Step 6: Final answer
    x = 10,102.80

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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.