Home / 8,905.15-12,289.14-4,926.40

Finding the Fourth Proportional to 8,905.15, 12,289.14 and 4,926.40

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Solution

The fourth proportional to 8,905.15, 12,289.14 and 4,926.40 is: 6,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.15 : 12,289.14 = 4,926.40 : x
  2. Step 2: Convert to fraction form
    8,905.15/12,289.14 = 4,926.40/x
  3. Step 3: Cross multiply
    8,905.15x = 12,289.14 × 4,926.40
  4. Step 4: Simplify right side
    8,905.15x = 60,541,157.85
  5. Step 5: Solve for x
    x = 60,541,157.85/8,905.15
  6. Step 6: Final answer
    x = 6,798.45

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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.