Home / 12,030.04-18,048.78-4,239.64

Finding the Fourth Proportional to 12,030.04, 18,048.78 and 4,239.64

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Solution

The fourth proportional to 12,030.04, 18,048.78 and 4,239.64 is: 6,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.04 : 18,048.78 = 4,239.64 : x
  2. Step 2: Convert to fraction form
    12,030.04/18,048.78 = 4,239.64/x
  3. Step 3: Cross multiply
    12,030.04x = 18,048.78 × 4,239.64
  4. Step 4: Simplify right side
    12,030.04x = 76,520,329.64
  5. Step 5: Solve for x
    x = 76,520,329.64/12,030.04
  6. Step 6: Final answer
    x = 6,360.77

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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.