Home / 14,406.28-19,881.06-7,945.60

Finding the Fourth Proportional to 14,406.28, 19,881.06 and 7,945.60

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Solution

The fourth proportional to 14,406.28, 19,881.06 and 7,945.60 is: 10,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.28 : 19,881.06 = 7,945.60 : x
  2. Step 2: Convert to fraction form
    14,406.28/19,881.06 = 7,945.60/x
  3. Step 3: Cross multiply
    14,406.28x = 19,881.06 × 7,945.60
  4. Step 4: Simplify right side
    14,406.28x = 157,966,950.34
  5. Step 5: Solve for x
    x = 157,966,950.34/14,406.28
  6. Step 6: Final answer
    x = 10,965.15

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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.