Home / 9,121.26-12,572.58-6,603.51

Finding the Fourth Proportional to 9,121.26, 12,572.58 and 6,603.51

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Solution

The fourth proportional to 9,121.26, 12,572.58 and 6,603.51 is: 9,102.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.26 : 12,572.58 = 6,603.51 : x
  2. Step 2: Convert to fraction form
    9,121.26/12,572.58 = 6,603.51/x
  3. Step 3: Cross multiply
    9,121.26x = 12,572.58 × 6,603.51
  4. Step 4: Simplify right side
    9,121.26x = 83,023,157.76
  5. Step 5: Solve for x
    x = 83,023,157.76/9,121.26
  6. Step 6: Final answer
    x = 9,102.16

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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.