Home / 10,622.25-14,662.35-6,430.50

Finding the Fourth Proportional to 10,622.25, 14,662.35 and 6,430.50

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Solution

The fourth proportional to 10,622.25, 14,662.35 and 6,430.50 is: 8,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.25 : 14,662.35 = 6,430.50 : x
  2. Step 2: Convert to fraction form
    10,622.25/14,662.35 = 6,430.50/x
  3. Step 3: Cross multiply
    10,622.25x = 14,662.35 × 6,430.50
  4. Step 4: Simplify right side
    10,622.25x = 94,286,241.68
  5. Step 5: Solve for x
    x = 94,286,241.68/10,622.25
  6. Step 6: Final answer
    x = 8,876.30

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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.