Home / 10,435.40-14,414.65-7,778.19

Finding the Fourth Proportional to 10,435.40, 14,414.65 and 7,778.19

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Solution

The fourth proportional to 10,435.40, 14,414.65 and 7,778.19 is: 10,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.40 : 14,414.65 = 7,778.19 : x
  2. Step 2: Convert to fraction form
    10,435.40/14,414.65 = 7,778.19/x
  3. Step 3: Cross multiply
    10,435.40x = 14,414.65 × 7,778.19
  4. Step 4: Simplify right side
    10,435.40x = 112,119,867.04
  5. Step 5: Solve for x
    x = 112,119,867.04/10,435.40
  6. Step 6: Final answer
    x = 10,744.19

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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.