Home / 19,646.99-29,459.72-7,788.75

Finding the Fourth Proportional to 19,646.99, 29,459.72 and 7,788.75

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Solution

The fourth proportional to 19,646.99, 29,459.72 and 7,788.75 is: 11,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,646.99 : 29,459.72 = 7,788.75 : x
  2. Step 2: Convert to fraction form
    19,646.99/29,459.72 = 7,788.75/x
  3. Step 3: Cross multiply
    19,646.99x = 29,459.72 × 7,788.75
  4. Step 4: Simplify right side
    19,646.99x = 229,454,355.21
  5. Step 5: Solve for x
    x = 229,454,355.21/19,646.99
  6. Step 6: Final answer
    x = 11,678.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.