Home / 9,920.72-13,690.54-5,444.36

Finding the Fourth Proportional to 9,920.72, 13,690.54 and 5,444.36

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Solution

The fourth proportional to 9,920.72, 13,690.54 and 5,444.36 is: 7,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.72 : 13,690.54 = 5,444.36 : x
  2. Step 2: Convert to fraction form
    9,920.72/13,690.54 = 5,444.36/x
  3. Step 3: Cross multiply
    9,920.72x = 13,690.54 × 5,444.36
  4. Step 4: Simplify right side
    9,920.72x = 74,536,228.35
  5. Step 5: Solve for x
    x = 74,536,228.35/9,920.72
  6. Step 6: Final answer
    x = 7,513.19

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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.