Home / 13,326.05-19,959.01-7,771.07

Finding the Fourth Proportional to 13,326.05, 19,959.01 and 7,771.07

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Solution

The fourth proportional to 13,326.05, 19,959.01 and 7,771.07 is: 11,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.05 : 19,959.01 = 7,771.07 : x
  2. Step 2: Convert to fraction form
    13,326.05/19,959.01 = 7,771.07/x
  3. Step 3: Cross multiply
    13,326.05x = 19,959.01 × 7,771.07
  4. Step 4: Simplify right side
    13,326.05x = 155,102,894.31
  5. Step 5: Solve for x
    x = 155,102,894.31/13,326.05
  6. Step 6: Final answer
    x = 11,639.07

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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.