Home / 15,782.05-23,678.77-9,771.13

Finding the Fourth Proportional to 15,782.05, 23,678.77 and 9,771.13

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Solution

The fourth proportional to 15,782.05, 23,678.77 and 9,771.13 is: 14,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.05 : 23,678.77 = 9,771.13 : x
  2. Step 2: Convert to fraction form
    15,782.05/23,678.77 = 9,771.13/x
  3. Step 3: Cross multiply
    15,782.05x = 23,678.77 × 9,771.13
  4. Step 4: Simplify right side
    15,782.05x = 231,368,486.42
  5. Step 5: Solve for x
    x = 231,368,486.42/15,782.05
  6. Step 6: Final answer
    x = 14,660.23

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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.