Home / 12,239.40-18,359.80-3,473.63

Finding the Fourth Proportional to 12,239.40, 18,359.80 and 3,473.63

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Solution

The fourth proportional to 12,239.40, 18,359.80 and 3,473.63 is: 5,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.40 : 18,359.80 = 3,473.63 : x
  2. Step 2: Convert to fraction form
    12,239.40/18,359.80 = 3,473.63/x
  3. Step 3: Cross multiply
    12,239.40x = 18,359.80 × 3,473.63
  4. Step 4: Simplify right side
    12,239.40x = 63,775,152.07
  5. Step 5: Solve for x
    x = 63,775,152.07/12,239.40
  6. Step 6: Final answer
    x = 5,210.64

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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.