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Finding the Fourth Proportional to 18,572.63, 27,827.49 and 13,280.77

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Solution

The fourth proportional to 18,572.63, 27,827.49 and 13,280.77 is: 19,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.63 : 27,827.49 = 13,280.77 : x
  2. Step 2: Convert to fraction form
    18,572.63/27,827.49 = 13,280.77/x
  3. Step 3: Cross multiply
    18,572.63x = 27,827.49 × 13,280.77
  4. Step 4: Simplify right side
    18,572.63x = 369,570,463.34
  5. Step 5: Solve for x
    x = 369,570,463.34/18,572.63
  6. Step 6: Final answer
    x = 19,898.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.