Home / 12,510.04-18,763.10-4,190.20

Finding the Fourth Proportional to 12,510.04, 18,763.10 and 4,190.20

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Solution

The fourth proportional to 12,510.04, 18,763.10 and 4,190.20 is: 6,284.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.04 : 18,763.10 = 4,190.20 : x
  2. Step 2: Convert to fraction form
    12,510.04/18,763.10 = 4,190.20/x
  3. Step 3: Cross multiply
    12,510.04x = 18,763.10 × 4,190.20
  4. Step 4: Simplify right side
    12,510.04x = 78,621,141.62
  5. Step 5: Solve for x
    x = 78,621,141.62/12,510.04
  6. Step 6: Final answer
    x = 6,284.64

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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.