Home / 13,774.39-19,008.68-7,807.96

Finding the Fourth Proportional to 13,774.39, 19,008.68 and 7,807.96

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Solution

The fourth proportional to 13,774.39, 19,008.68 and 7,807.96 is: 10,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.39 : 19,008.68 = 7,807.96 : x
  2. Step 2: Convert to fraction form
    13,774.39/19,008.68 = 7,807.96/x
  3. Step 3: Cross multiply
    13,774.39x = 19,008.68 × 7,807.96
  4. Step 4: Simplify right side
    13,774.39x = 148,418,997.81
  5. Step 5: Solve for x
    x = 148,418,997.81/13,774.39
  6. Step 6: Final answer
    x = 10,775.00

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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.