Home / 13,510.09-18,644.23-8,474.52

Finding the Fourth Proportional to 13,510.09, 18,644.23 and 8,474.52

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Solution

The fourth proportional to 13,510.09, 18,644.23 and 8,474.52 is: 11,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.09 : 18,644.23 = 8,474.52 : x
  2. Step 2: Convert to fraction form
    13,510.09/18,644.23 = 8,474.52/x
  3. Step 3: Cross multiply
    13,510.09x = 18,644.23 × 8,474.52
  4. Step 4: Simplify right side
    13,510.09x = 158,000,875.65
  5. Step 5: Solve for x
    x = 158,000,875.65/13,510.09
  6. Step 6: Final answer
    x = 11,695.03

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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.