Home / 9,426.40-13,008.72-5,235.28

Finding the Fourth Proportional to 9,426.40, 13,008.72 and 5,235.28

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Solution

The fourth proportional to 9,426.40, 13,008.72 and 5,235.28 is: 7,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,426.40 : 13,008.72 = 5,235.28 : x
  2. Step 2: Convert to fraction form
    9,426.40/13,008.72 = 5,235.28/x
  3. Step 3: Cross multiply
    9,426.40x = 13,008.72 × 5,235.28
  4. Step 4: Simplify right side
    9,426.40x = 68,104,291.64
  5. Step 5: Solve for x
    x = 68,104,291.64/9,426.40
  6. Step 6: Final answer
    x = 7,224.85

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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.