Home / 12,031.18-18,048.20-5,015.95

Finding the Fourth Proportional to 12,031.18, 18,048.20 and 5,015.95

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Solution

The fourth proportional to 12,031.18, 18,048.20 and 5,015.95 is: 7,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.18 : 18,048.20 = 5,015.95 : x
  2. Step 2: Convert to fraction form
    12,031.18/18,048.20 = 5,015.95/x
  3. Step 3: Cross multiply
    12,031.18x = 18,048.20 × 5,015.95
  4. Step 4: Simplify right side
    12,031.18x = 90,528,798.59
  5. Step 5: Solve for x
    x = 90,528,798.59/12,031.18
  6. Step 6: Final answer
    x = 7,524.52

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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.