Home / 19,151.32-26,420.70-11,695

Finding the Fourth Proportional to 19,151.32, 26,420.70 and 11,695

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Solution

The fourth proportional to 19,151.32, 26,420.70 and 11,695 is: 16,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.32 : 26,420.70 = 11,695 : x
  2. Step 2: Convert to fraction form
    19,151.32/26,420.70 = 11,695/x
  3. Step 3: Cross multiply
    19,151.32x = 26,420.70 × 11,695
  4. Step 4: Simplify right side
    19,151.32x = 308,990,086.50
  5. Step 5: Solve for x
    x = 308,990,086.50/19,151.32
  6. Step 6: Final answer
    x = 16,134.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.