Home / 14,007.93-19,331.03-7,720.31

Finding the Fourth Proportional to 14,007.93, 19,331.03 and 7,720.31

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Solution

The fourth proportional to 14,007.93, 19,331.03 and 7,720.31 is: 10,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.93 : 19,331.03 = 7,720.31 : x
  2. Step 2: Convert to fraction form
    14,007.93/19,331.03 = 7,720.31/x
  3. Step 3: Cross multiply
    14,007.93x = 19,331.03 × 7,720.31
  4. Step 4: Simplify right side
    14,007.93x = 149,241,466.86
  5. Step 5: Solve for x
    x = 149,241,466.86/14,007.93
  6. Step 6: Final answer
    x = 10,654.07

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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.