Home / 13,289.15-19,894.83-10,489.79

Finding the Fourth Proportional to 13,289.15, 19,894.83 and 10,489.79

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Solution

The fourth proportional to 13,289.15, 19,894.83 and 10,489.79 is: 15,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.15 : 19,894.83 = 10,489.79 : x
  2. Step 2: Convert to fraction form
    13,289.15/19,894.83 = 10,489.79/x
  3. Step 3: Cross multiply
    13,289.15x = 19,894.83 × 10,489.79
  4. Step 4: Simplify right side
    13,289.15x = 208,692,489.31
  5. Step 5: Solve for x
    x = 208,692,489.31/13,289.15
  6. Step 6: Final answer
    x = 15,703.98

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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.