Home / 11,603.04-17,428.32-7,660.08

Finding the Fourth Proportional to 11,603.04, 17,428.32 and 7,660.08

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Solution

The fourth proportional to 11,603.04, 17,428.32 and 7,660.08 is: 11,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.04 : 17,428.32 = 7,660.08 : x
  2. Step 2: Convert to fraction form
    11,603.04/17,428.32 = 7,660.08/x
  3. Step 3: Cross multiply
    11,603.04x = 17,428.32 × 7,660.08
  4. Step 4: Simplify right side
    11,603.04x = 133,502,325.47
  5. Step 5: Solve for x
    x = 133,502,325.47/11,603.04
  6. Step 6: Final answer
    x = 11,505.81

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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.