Home / 9,840.43-13,579.80-5,364.19

Finding the Fourth Proportional to 9,840.43, 13,579.80 and 5,364.19

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Solution

The fourth proportional to 9,840.43, 13,579.80 and 5,364.19 is: 7,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840.43 : 13,579.80 = 5,364.19 : x
  2. Step 2: Convert to fraction form
    9,840.43/13,579.80 = 5,364.19/x
  3. Step 3: Cross multiply
    9,840.43x = 13,579.80 × 5,364.19
  4. Step 4: Simplify right side
    9,840.43x = 72,844,664.08
  5. Step 5: Solve for x
    x = 72,844,664.08/9,840.43
  6. Step 6: Final answer
    x = 7,402.59

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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.