Home / 19,206.78-28,811.09-9,334.30

Finding the Fourth Proportional to 19,206.78, 28,811.09 and 9,334.30

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Solution

The fourth proportional to 19,206.78, 28,811.09 and 9,334.30 is: 14,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.78 : 28,811.09 = 9,334.30 : x
  2. Step 2: Convert to fraction form
    19,206.78/28,811.09 = 9,334.30/x
  3. Step 3: Cross multiply
    19,206.78x = 28,811.09 × 9,334.30
  4. Step 4: Simplify right side
    19,206.78x = 268,931,238.69
  5. Step 5: Solve for x
    x = 268,931,238.69/19,206.78
  6. Step 6: Final answer
    x = 14,001.89

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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.