Home / 12,339.04-18,510.40-3,572.80

Finding the Fourth Proportional to 12,339.04, 18,510.40 and 3,572.80

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Solution

The fourth proportional to 12,339.04, 18,510.40 and 3,572.80 is: 5,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.04 : 18,510.40 = 3,572.80 : x
  2. Step 2: Convert to fraction form
    12,339.04/18,510.40 = 3,572.80/x
  3. Step 3: Cross multiply
    12,339.04x = 18,510.40 × 3,572.80
  4. Step 4: Simplify right side
    12,339.04x = 66,133,957.12
  5. Step 5: Solve for x
    x = 66,133,957.12/12,339.04
  6. Step 6: Final answer
    x = 5,359.73

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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.