Home / 14,218.88-19,622.66-7,931.25

Finding the Fourth Proportional to 14,218.88, 19,622.66 and 7,931.25

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Solution

The fourth proportional to 14,218.88, 19,622.66 and 7,931.25 is: 10,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.88 : 19,622.66 = 7,931.25 : x
  2. Step 2: Convert to fraction form
    14,218.88/19,622.66 = 7,931.25/x
  3. Step 3: Cross multiply
    14,218.88x = 19,622.66 × 7,931.25
  4. Step 4: Simplify right side
    14,218.88x = 155,632,182.47
  5. Step 5: Solve for x
    x = 155,632,182.47/14,218.88
  6. Step 6: Final answer
    x = 10,945.46

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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.