Home / 10,316.91-14,242.97-7,778.98

Finding the Fourth Proportional to 10,316.91, 14,242.97 and 7,778.98

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Solution

The fourth proportional to 10,316.91, 14,242.97 and 7,778.98 is: 10,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.91 : 14,242.97 = 7,778.98 : x
  2. Step 2: Convert to fraction form
    10,316.91/14,242.97 = 7,778.98/x
  3. Step 3: Cross multiply
    10,316.91x = 14,242.97 × 7,778.98
  4. Step 4: Simplify right side
    10,316.91x = 110,795,778.77
  5. Step 5: Solve for x
    x = 110,795,778.77/10,316.91
  6. Step 6: Final answer
    x = 10,739.24

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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.