Home / 13,630.20-20,448.05-4,864.89

Finding the Fourth Proportional to 13,630.20, 20,448.05 and 4,864.89

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Solution

The fourth proportional to 13,630.20, 20,448.05 and 4,864.89 is: 7,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.20 : 20,448.05 = 4,864.89 : x
  2. Step 2: Convert to fraction form
    13,630.20/20,448.05 = 4,864.89/x
  3. Step 3: Cross multiply
    13,630.20x = 20,448.05 × 4,864.89
  4. Step 4: Simplify right side
    13,630.20x = 99,477,393.79
  5. Step 5: Solve for x
    x = 99,477,393.79/13,630.20
  6. Step 6: Final answer
    x = 7,298.31

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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.