Home / 13,484.98-20,328.45-12,581.82

Finding the Fourth Proportional to 13,484.98, 20,328.45 and 12,581.82

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Solution

The fourth proportional to 13,484.98, 20,328.45 and 12,581.82 is: 18,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.98 : 20,328.45 = 12,581.82 : x
  2. Step 2: Convert to fraction form
    13,484.98/20,328.45 = 12,581.82/x
  3. Step 3: Cross multiply
    13,484.98x = 20,328.45 × 12,581.82
  4. Step 4: Simplify right side
    13,484.98x = 255,768,898.78
  5. Step 5: Solve for x
    x = 255,768,898.78/13,484.98
  6. Step 6: Final answer
    x = 18,966.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.