Home / 13,056.64-19,582.08-4,289.20

Finding the Fourth Proportional to 13,056.64, 19,582.08 and 4,289.20

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Solution

The fourth proportional to 13,056.64, 19,582.08 and 4,289.20 is: 6,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.64 : 19,582.08 = 4,289.20 : x
  2. Step 2: Convert to fraction form
    13,056.64/19,582.08 = 4,289.20/x
  3. Step 3: Cross multiply
    13,056.64x = 19,582.08 × 4,289.20
  4. Step 4: Simplify right side
    13,056.64x = 83,991,457.54
  5. Step 5: Solve for x
    x = 83,991,457.54/13,056.64
  6. Step 6: Final answer
    x = 6,432.85

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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.