Home / 10,403.93-14,369.72-7,040.90

Finding the Fourth Proportional to 10,403.93, 14,369.72 and 7,040.90

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Solution

The fourth proportional to 10,403.93, 14,369.72 and 7,040.90 is: 9,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.93 : 14,369.72 = 7,040.90 : x
  2. Step 2: Convert to fraction form
    10,403.93/14,369.72 = 7,040.90/x
  3. Step 3: Cross multiply
    10,403.93x = 14,369.72 × 7,040.90
  4. Step 4: Simplify right side
    10,403.93x = 101,175,654.49
  5. Step 5: Solve for x
    x = 101,175,654.49/10,403.93
  6. Step 6: Final answer
    x = 9,724.76

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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.