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Finding the Fourth Proportional to 13,510.76, 18,639.48 and 9,027.41

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Solution

The fourth proportional to 13,510.76, 18,639.48 and 9,027.41 is: 12,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.76 : 18,639.48 = 9,027.41 : x
  2. Step 2: Convert to fraction form
    13,510.76/18,639.48 = 9,027.41/x
  3. Step 3: Cross multiply
    13,510.76x = 18,639.48 × 9,027.41
  4. Step 4: Simplify right side
    13,510.76x = 168,266,168.80
  5. Step 5: Solve for x
    x = 168,266,168.80/13,510.76
  6. Step 6: Final answer
    x = 12,454.24

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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.