Home / 15,504.01-21,395.73-8,430.58

Finding the Fourth Proportional to 15,504.01, 21,395.73 and 8,430.58

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Solution

The fourth proportional to 15,504.01, 21,395.73 and 8,430.58 is: 11,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.01 : 21,395.73 = 8,430.58 : x
  2. Step 2: Convert to fraction form
    15,504.01/21,395.73 = 8,430.58/x
  3. Step 3: Cross multiply
    15,504.01x = 21,395.73 × 8,430.58
  4. Step 4: Simplify right side
    15,504.01x = 180,378,413.42
  5. Step 5: Solve for x
    x = 180,378,413.42/15,504.01
  6. Step 6: Final answer
    x = 11,634.31

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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.