Home / 9,219.60-13,838.04-4,840.20

Finding the Fourth Proportional to 9,219.60, 13,838.04 and 4,840.20

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Solution

The fourth proportional to 9,219.60, 13,838.04 and 4,840.20 is: 7,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.60 : 13,838.04 = 4,840.20 : x
  2. Step 2: Convert to fraction form
    9,219.60/13,838.04 = 4,840.20/x
  3. Step 3: Cross multiply
    9,219.60x = 13,838.04 × 4,840.20
  4. Step 4: Simplify right side
    9,219.60x = 66,978,881.21
  5. Step 5: Solve for x
    x = 66,978,881.21/9,219.60
  6. Step 6: Final answer
    x = 7,264.84

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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.