Home / 10,331.19-14,278.05-7,812.45

Finding the Fourth Proportional to 10,331.19, 14,278.05 and 7,812.45

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Solution

The fourth proportional to 10,331.19, 14,278.05 and 7,812.45 is: 10,797.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.19 : 14,278.05 = 7,812.45 : x
  2. Step 2: Convert to fraction form
    10,331.19/14,278.05 = 7,812.45/x
  3. Step 3: Cross multiply
    10,331.19x = 14,278.05 × 7,812.45
  4. Step 4: Simplify right side
    10,331.19x = 111,546,551.72
  5. Step 5: Solve for x
    x = 111,546,551.72/10,331.19
  6. Step 6: Final answer
    x = 10,797.07

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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.