Home / 19,065.99-28,618.34-9,213.55

Finding the Fourth Proportional to 19,065.99, 28,618.34 and 9,213.55

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Solution

The fourth proportional to 19,065.99, 28,618.34 and 9,213.55 is: 13,829.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.99 : 28,618.34 = 9,213.55 : x
  2. Step 2: Convert to fraction form
    19,065.99/28,618.34 = 9,213.55/x
  3. Step 3: Cross multiply
    19,065.99x = 28,618.34 × 9,213.55
  4. Step 4: Simplify right side
    19,065.99x = 263,676,506.51
  5. Step 5: Solve for x
    x = 263,676,506.51/19,065.99
  6. Step 6: Final answer
    x = 13,829.68

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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.