Home / 13,332.74-19,992.15-6,661.98

Finding the Fourth Proportional to 13,332.74, 19,992.15 and 6,661.98

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Solution

The fourth proportional to 13,332.74, 19,992.15 and 6,661.98 is: 9,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.74 : 19,992.15 = 6,661.98 : x
  2. Step 2: Convert to fraction form
    13,332.74/19,992.15 = 6,661.98/x
  3. Step 3: Cross multiply
    13,332.74x = 19,992.15 × 6,661.98
  4. Step 4: Simplify right side
    13,332.74x = 133,187,303.46
  5. Step 5: Solve for x
    x = 133,187,303.46/13,332.74
  6. Step 6: Final answer
    x = 9,989.50

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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.