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Finding the Fourth Proportional to 9,129.03, 12,597.12 and 6,740.28

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Solution

The fourth proportional to 9,129.03, 12,597.12 and 6,740.28 is: 9,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.03 : 12,597.12 = 6,740.28 : x
  2. Step 2: Convert to fraction form
    9,129.03/12,597.12 = 6,740.28/x
  3. Step 3: Cross multiply
    9,129.03x = 12,597.12 × 6,740.28
  4. Step 4: Simplify right side
    9,129.03x = 84,908,115.99
  5. Step 5: Solve for x
    x = 84,908,115.99/9,129.03
  6. Step 6: Final answer
    x = 9,300.89

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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.