Home / 14,154.91-19,533.71-7,781.88

Finding the Fourth Proportional to 14,154.91, 19,533.71 and 7,781.88

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Solution

The fourth proportional to 14,154.91, 19,533.71 and 7,781.88 is: 10,738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.91 : 19,533.71 = 7,781.88 : x
  2. Step 2: Convert to fraction form
    14,154.91/19,533.71 = 7,781.88/x
  3. Step 3: Cross multiply
    14,154.91x = 19,533.71 × 7,781.88
  4. Step 4: Simplify right side
    14,154.91x = 152,008,987.17
  5. Step 5: Solve for x
    x = 152,008,987.17/14,154.91
  6. Step 6: Final answer
    x = 10,738.96

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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.