Home / 14,237.28-19,648.00-7,864.20

Finding the Fourth Proportional to 14,237.28, 19,648.00 and 7,864.20

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Solution

The fourth proportional to 14,237.28, 19,648.00 and 7,864.20 is: 10,852.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,237.28 : 19,648.00 = 7,864.20 : x
  2. Step 2: Convert to fraction form
    14,237.28/19,648.00 = 7,864.20/x
  3. Step 3: Cross multiply
    14,237.28x = 19,648.00 × 7,864.20
  4. Step 4: Simplify right side
    14,237.28x = 154,515,811.43
  5. Step 5: Solve for x
    x = 154,515,811.43/14,237.28
  6. Step 6: Final answer
    x = 10,852.90

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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.