Home / 14,009.34-19,332.89-7,721.72

Finding the Fourth Proportional to 14,009.34, 19,332.89 and 7,721.72

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Solution

The fourth proportional to 14,009.34, 19,332.89 and 7,721.72 is: 10,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.34 : 19,332.89 = 7,721.72 : x
  2. Step 2: Convert to fraction form
    14,009.34/19,332.89 = 7,721.72/x
  3. Step 3: Cross multiply
    14,009.34x = 19,332.89 × 7,721.72
  4. Step 4: Simplify right side
    14,009.34x = 149,283,163.37
  5. Step 5: Solve for x
    x = 149,283,163.37/14,009.34
  6. Step 6: Final answer
    x = 10,655.97

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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.