Home / 13,053.60-19,580.44-4,289.20

Finding the Fourth Proportional to 13,053.60, 19,580.44 and 4,289.20

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Solution

The fourth proportional to 13,053.60, 19,580.44 and 4,289.20 is: 6,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.60 : 19,580.44 = 4,289.20 : x
  2. Step 2: Convert to fraction form
    13,053.60/19,580.44 = 4,289.20/x
  3. Step 3: Cross multiply
    13,053.60x = 19,580.44 × 4,289.20
  4. Step 4: Simplify right side
    13,053.60x = 83,984,423.25
  5. Step 5: Solve for x
    x = 83,984,423.25/13,053.60
  6. Step 6: Final answer
    x = 6,433.81

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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.