Home / 9,905.79-14,860.28-3,240.35

Finding the Fourth Proportional to 9,905.79, 14,860.28 and 3,240.35

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Solution

The fourth proportional to 9,905.79, 14,860.28 and 3,240.35 is: 4,861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.79 : 14,860.28 = 3,240.35 : x
  2. Step 2: Convert to fraction form
    9,905.79/14,860.28 = 3,240.35/x
  3. Step 3: Cross multiply
    9,905.79x = 14,860.28 × 3,240.35
  4. Step 4: Simplify right side
    9,905.79x = 48,152,442.10
  5. Step 5: Solve for x
    x = 48,152,442.10/9,905.79
  6. Step 6: Final answer
    x = 4,861.04

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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.