Home / 9,311.30-13,964.52-4,378.40

Finding the Fourth Proportional to 9,311.30, 13,964.52 and 4,378.40

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Solution

The fourth proportional to 9,311.30, 13,964.52 and 4,378.40 is: 6,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.30 : 13,964.52 = 4,378.40 : x
  2. Step 2: Convert to fraction form
    9,311.30/13,964.52 = 4,378.40/x
  3. Step 3: Cross multiply
    9,311.30x = 13,964.52 × 4,378.40
  4. Step 4: Simplify right side
    9,311.30x = 61,142,254.37
  5. Step 5: Solve for x
    x = 61,142,254.37/9,311.30
  6. Step 6: Final answer
    x = 6,566.46

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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.