Home / 19,151.04-26,433.12-11,705.28

Finding the Fourth Proportional to 19,151.04, 26,433.12 and 11,705.28

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Solution

The fourth proportional to 19,151.04, 26,433.12 and 11,705.28 is: 16,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.04 : 26,433.12 = 11,705.28 : x
  2. Step 2: Convert to fraction form
    19,151.04/26,433.12 = 11,705.28/x
  3. Step 3: Cross multiply
    19,151.04x = 26,433.12 × 11,705.28
  4. Step 4: Simplify right side
    19,151.04x = 309,407,070.87
  5. Step 5: Solve for x
    x = 309,407,070.87/19,151.04
  6. Step 6: Final answer
    x = 16,156.15

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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.