Home / 14,001.56-19,321.46-7,712.76

Finding the Fourth Proportional to 14,001.56, 19,321.46 and 7,712.76

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Solution

The fourth proportional to 14,001.56, 19,321.46 and 7,712.76 is: 10,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.56 : 19,321.46 = 7,712.76 : x
  2. Step 2: Convert to fraction form
    14,001.56/19,321.46 = 7,712.76/x
  3. Step 3: Cross multiply
    14,001.56x = 19,321.46 × 7,712.76
  4. Step 4: Simplify right side
    14,001.56x = 149,021,783.83
  5. Step 5: Solve for x
    x = 149,021,783.83/14,001.56
  6. Step 6: Final answer
    x = 10,643.23

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Half scale
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Double scale
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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.