Home / 14,988.14-20,632.83-12,879.98

Finding the Fourth Proportional to 14,988.14, 20,632.83 and 12,879.98

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Solution

The fourth proportional to 14,988.14, 20,632.83 and 12,879.98 is: 17,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.14 : 20,632.83 = 12,879.98 : x
  2. Step 2: Convert to fraction form
    14,988.14/20,632.83 = 12,879.98/x
  3. Step 3: Cross multiply
    14,988.14x = 20,632.83 × 12,879.98
  4. Step 4: Simplify right side
    14,988.14x = 265,750,437.74
  5. Step 5: Solve for x
    x = 265,750,437.74/14,988.14
  6. Step 6: Final answer
    x = 17,730.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.