Home / 14,154.06-19,533.10-7,781.38

Finding the Fourth Proportional to 14,154.06, 19,533.10 and 7,781.38

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Solution

The fourth proportional to 14,154.06, 19,533.10 and 7,781.38 is: 10,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.06 : 19,533.10 = 7,781.38 : x
  2. Step 2: Convert to fraction form
    14,154.06/19,533.10 = 7,781.38/x
  3. Step 3: Cross multiply
    14,154.06x = 19,533.10 × 7,781.38
  4. Step 4: Simplify right side
    14,154.06x = 151,994,529.86
  5. Step 5: Solve for x
    x = 151,994,529.86/14,154.06
  6. Step 6: Final answer
    x = 10,738.58

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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.