Home / 13,023.69-19,421.14-12,905.27

Finding the Fourth Proportional to 13,023.69, 19,421.14 and 12,905.27

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Solution

The fourth proportional to 13,023.69, 19,421.14 and 12,905.27 is: 19,244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.69 : 19,421.14 = 12,905.27 : x
  2. Step 2: Convert to fraction form
    13,023.69/19,421.14 = 12,905.27/x
  3. Step 3: Cross multiply
    13,023.69x = 19,421.14 × 12,905.27
  4. Step 4: Simplify right side
    13,023.69x = 250,635,168.61
  5. Step 5: Solve for x
    x = 250,635,168.61/13,023.69
  6. Step 6: Final answer
    x = 19,244.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.