Home / 9,378.60-14,070.46-3,139.64

Finding the Fourth Proportional to 9,378.60, 14,070.46 and 3,139.64

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Solution

The fourth proportional to 9,378.60, 14,070.46 and 3,139.64 is: 4,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.60 : 14,070.46 = 3,139.64 : x
  2. Step 2: Convert to fraction form
    9,378.60/14,070.46 = 3,139.64/x
  3. Step 3: Cross multiply
    9,378.60x = 14,070.46 × 3,139.64
  4. Step 4: Simplify right side
    9,378.60x = 44,176,179.03
  5. Step 5: Solve for x
    x = 44,176,179.03/9,378.60
  6. Step 6: Final answer
    x = 4,710.32

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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.