Home / 12,756.07-17,603.52-7,091.17

Finding the Fourth Proportional to 12,756.07, 17,603.52 and 7,091.17

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Solution

The fourth proportional to 12,756.07, 17,603.52 and 7,091.17 is: 9,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.07 : 17,603.52 = 7,091.17 : x
  2. Step 2: Convert to fraction form
    12,756.07/17,603.52 = 7,091.17/x
  3. Step 3: Cross multiply
    12,756.07x = 17,603.52 × 7,091.17
  4. Step 4: Simplify right side
    12,756.07x = 124,829,552.92
  5. Step 5: Solve for x
    x = 124,829,552.92/12,756.07
  6. Step 6: Final answer
    x = 9,785.89

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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.