Home / 19,089.85-28,632.96-11,690.50

Finding the Fourth Proportional to 19,089.85, 28,632.96 and 11,690.50

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Solution

The fourth proportional to 19,089.85, 28,632.96 and 11,690.50 is: 17,534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.85 : 28,632.96 = 11,690.50 : x
  2. Step 2: Convert to fraction form
    19,089.85/28,632.96 = 11,690.50/x
  3. Step 3: Cross multiply
    19,089.85x = 28,632.96 × 11,690.50
  4. Step 4: Simplify right side
    19,089.85x = 334,733,618.88
  5. Step 5: Solve for x
    x = 334,733,618.88/19,089.85
  6. Step 6: Final answer
    x = 17,534.64

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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.