Home / 13,774.32-19,008.47-7,486.70

Finding the Fourth Proportional to 13,774.32, 19,008.47 and 7,486.70

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Solution

The fourth proportional to 13,774.32, 19,008.47 and 7,486.70 is: 10,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.32 : 19,008.47 = 7,486.70 : x
  2. Step 2: Convert to fraction form
    13,774.32/19,008.47 = 7,486.70/x
  3. Step 3: Cross multiply
    13,774.32x = 19,008.47 × 7,486.70
  4. Step 4: Simplify right side
    13,774.32x = 142,310,579.87
  5. Step 5: Solve for x
    x = 142,310,579.87/13,774.32
  6. Step 6: Final answer
    x = 10,331.59

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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.