Home / 11,102.04-15,321.06-7,130.52

Finding the Fourth Proportional to 11,102.04, 15,321.06 and 7,130.52

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Solution

The fourth proportional to 11,102.04, 15,321.06 and 7,130.52 is: 9,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.04 : 15,321.06 = 7,130.52 : x
  2. Step 2: Convert to fraction form
    11,102.04/15,321.06 = 7,130.52/x
  3. Step 3: Cross multiply
    11,102.04x = 15,321.06 × 7,130.52
  4. Step 4: Simplify right side
    11,102.04x = 109,247,124.75
  5. Step 5: Solve for x
    x = 109,247,124.75/11,102.04
  6. Step 6: Final answer
    x = 9,840.27

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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.