Home / 13,510.95-20,261.26-6,489.01

Finding the Fourth Proportional to 13,510.95, 20,261.26 and 6,489.01

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Solution

The fourth proportional to 13,510.95, 20,261.26 and 6,489.01 is: 9,731.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.95 : 20,261.26 = 6,489.01 : x
  2. Step 2: Convert to fraction form
    13,510.95/20,261.26 = 6,489.01/x
  3. Step 3: Cross multiply
    13,510.95x = 20,261.26 × 6,489.01
  4. Step 4: Simplify right side
    13,510.95x = 131,475,570.44
  5. Step 5: Solve for x
    x = 131,475,570.44/13,510.95
  6. Step 6: Final answer
    x = 9,731.04

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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.