Home / 14,218.70-19,622.24-7,931.06

Finding the Fourth Proportional to 14,218.70, 19,622.24 and 7,931.06

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Solution

The fourth proportional to 14,218.70, 19,622.24 and 7,931.06 is: 10,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.70 : 19,622.24 = 7,931.06 : x
  2. Step 2: Convert to fraction form
    14,218.70/19,622.24 = 7,931.06/x
  3. Step 3: Cross multiply
    14,218.70x = 19,622.24 × 7,931.06
  4. Step 4: Simplify right side
    14,218.70x = 155,625,162.77
  5. Step 5: Solve for x
    x = 155,625,162.77/14,218.70
  6. Step 6: Final answer
    x = 10,945.10

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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.