Home / 13,320.18-19,980.27-4,557.60

Finding the Fourth Proportional to 13,320.18, 19,980.27 and 4,557.60

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Solution

The fourth proportional to 13,320.18, 19,980.27 and 4,557.60 is: 6,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.18 : 19,980.27 = 4,557.60 : x
  2. Step 2: Convert to fraction form
    13,320.18/19,980.27 = 4,557.60/x
  3. Step 3: Cross multiply
    13,320.18x = 19,980.27 × 4,557.60
  4. Step 4: Simplify right side
    13,320.18x = 91,062,078.55
  5. Step 5: Solve for x
    x = 91,062,078.55/13,320.18
  6. Step 6: Final answer
    x = 6,836.40

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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.