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Finding the Fourth Proportional to 9,009.77, 12,434.95 and 5,235.37

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Solution

The fourth proportional to 9,009.77, 12,434.95 and 5,235.37 is: 7,225.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.77 : 12,434.95 = 5,235.37 : x
  2. Step 2: Convert to fraction form
    9,009.77/12,434.95 = 5,235.37/x
  3. Step 3: Cross multiply
    9,009.77x = 12,434.95 × 5,235.37
  4. Step 4: Simplify right side
    9,009.77x = 65,101,539.64
  5. Step 5: Solve for x
    x = 65,101,539.64/9,009.77
  6. Step 6: Final answer
    x = 7,225.66

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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.