Home / 8,398.23-11,585.69-5,415.03

Finding the Fourth Proportional to 8,398.23, 11,585.69 and 5,415.03

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Solution

The fourth proportional to 8,398.23, 11,585.69 and 5,415.03 is: 7,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.23 : 11,585.69 = 5,415.03 : x
  2. Step 2: Convert to fraction form
    8,398.23/11,585.69 = 5,415.03/x
  3. Step 3: Cross multiply
    8,398.23x = 11,585.69 × 5,415.03
  4. Step 4: Simplify right side
    8,398.23x = 62,736,788.40
  5. Step 5: Solve for x
    x = 62,736,788.40/8,398.23
  6. Step 6: Final answer
    x = 7,470.24

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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.