Home / 10,385.21-14,325.48-6,403.50

Finding the Fourth Proportional to 10,385.21, 14,325.48 and 6,403.50

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Solution

The fourth proportional to 10,385.21, 14,325.48 and 6,403.50 is: 8,833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.21 : 14,325.48 = 6,403.50 : x
  2. Step 2: Convert to fraction form
    10,385.21/14,325.48 = 6,403.50/x
  3. Step 3: Cross multiply
    10,385.21x = 14,325.48 × 6,403.50
  4. Step 4: Simplify right side
    10,385.21x = 91,733,211.18
  5. Step 5: Solve for x
    x = 91,733,211.18/10,385.21
  6. Step 6: Final answer
    x = 8,833.06

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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.