Home / 10,408.80-14,361.60-6,430.08

Finding the Fourth Proportional to 10,408.80, 14,361.60 and 6,430.08

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Solution

The fourth proportional to 10,408.80, 14,361.60 and 6,430.08 is: 8,871.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.80 : 14,361.60 = 6,430.08 : x
  2. Step 2: Convert to fraction form
    10,408.80/14,361.60 = 6,430.08/x
  3. Step 3: Cross multiply
    10,408.80x = 14,361.60 × 6,430.08
  4. Step 4: Simplify right side
    10,408.80x = 92,346,236.93
  5. Step 5: Solve for x
    x = 92,346,236.93/10,408.80
  6. Step 6: Final answer
    x = 8,871.94

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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.