Home / 11,669.04-16,100.40-7,130.56

Finding the Fourth Proportional to 11,669.04, 16,100.40 and 7,130.56

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Solution

The fourth proportional to 11,669.04, 16,100.40 and 7,130.56 is: 9,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,669.04 : 16,100.40 = 7,130.56 : x
  2. Step 2: Convert to fraction form
    11,669.04/16,100.40 = 7,130.56/x
  3. Step 3: Cross multiply
    11,669.04x = 16,100.40 × 7,130.56
  4. Step 4: Simplify right side
    11,669.04x = 114,804,868.22
  5. Step 5: Solve for x
    x = 114,804,868.22/11,669.04
  6. Step 6: Final answer
    x = 9,838.42

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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.