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Finding the Fourth Proportional to 9,950.40, 14,925.60 and 6,451.20

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Solution

The fourth proportional to 9,950.40, 14,925.60 and 6,451.20 is: 9,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.40 : 14,925.60 = 6,451.20 : x
  2. Step 2: Convert to fraction form
    9,950.40/14,925.60 = 6,451.20/x
  3. Step 3: Cross multiply
    9,950.40x = 14,925.60 × 6,451.20
  4. Step 4: Simplify right side
    9,950.40x = 96,288,030.72
  5. Step 5: Solve for x
    x = 96,288,030.72/9,950.40
  6. Step 6: Final answer
    x = 9,676.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.