Home / 13,205.60-19,807.68-4,439.60

Finding the Fourth Proportional to 13,205.60, 19,807.68 and 4,439.60

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Solution

The fourth proportional to 13,205.60, 19,807.68 and 4,439.60 is: 6,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.60 : 19,807.68 = 4,439.60 : x
  2. Step 2: Convert to fraction form
    13,205.60/19,807.68 = 4,439.60/x
  3. Step 3: Cross multiply
    13,205.60x = 19,807.68 × 4,439.60
  4. Step 4: Simplify right side
    13,205.60x = 87,938,176.13
  5. Step 5: Solve for x
    x = 87,938,176.13/13,205.60
  6. Step 6: Final answer
    x = 6,659.16

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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.