Home / 14,016.07-19,342.07-7,728.45

Finding the Fourth Proportional to 14,016.07, 19,342.07 and 7,728.45

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Solution

The fourth proportional to 14,016.07, 19,342.07 and 7,728.45 is: 10,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.07 : 19,342.07 = 7,728.45 : x
  2. Step 2: Convert to fraction form
    14,016.07/19,342.07 = 7,728.45/x
  3. Step 3: Cross multiply
    14,016.07x = 19,342.07 × 7,728.45
  4. Step 4: Simplify right side
    14,016.07x = 149,484,220.89
  5. Step 5: Solve for x
    x = 149,484,220.89/14,016.07
  6. Step 6: Final answer
    x = 10,665.20

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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.