Home / 19,678.05-29,501.55-9,812.25

Finding the Fourth Proportional to 19,678.05, 29,501.55 and 9,812.25

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Solution

The fourth proportional to 19,678.05, 29,501.55 and 9,812.25 is: 14,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.05 : 29,501.55 = 9,812.25 : x
  2. Step 2: Convert to fraction form
    19,678.05/29,501.55 = 9,812.25/x
  3. Step 3: Cross multiply
    19,678.05x = 29,501.55 × 9,812.25
  4. Step 4: Simplify right side
    19,678.05x = 289,476,583.99
  5. Step 5: Solve for x
    x = 289,476,583.99/19,678.05
  6. Step 6: Final answer
    x = 14,710.63

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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.