Home / 10,503.20-14,490.60-6,255.56

Finding the Fourth Proportional to 10,503.20, 14,490.60 and 6,255.56

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Solution

The fourth proportional to 10,503.20, 14,490.60 and 6,255.56 is: 8,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.20 : 14,490.60 = 6,255.56 : x
  2. Step 2: Convert to fraction form
    10,503.20/14,490.60 = 6,255.56/x
  3. Step 3: Cross multiply
    10,503.20x = 14,490.60 × 6,255.56
  4. Step 4: Simplify right side
    10,503.20x = 90,646,817.74
  5. Step 5: Solve for x
    x = 90,646,817.74/10,503.20
  6. Step 6: Final answer
    x = 8,630.40

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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.