Home / 9,896.61-13,657.32-5,420.52

Finding the Fourth Proportional to 9,896.61, 13,657.32 and 5,420.52

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Solution

The fourth proportional to 9,896.61, 13,657.32 and 5,420.52 is: 7,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,896.61 : 13,657.32 = 5,420.52 : x
  2. Step 2: Convert to fraction form
    9,896.61/13,657.32 = 5,420.52/x
  3. Step 3: Cross multiply
    9,896.61x = 13,657.32 × 5,420.52
  4. Step 4: Simplify right side
    9,896.61x = 74,029,776.21
  5. Step 5: Solve for x
    x = 74,029,776.21/9,896.61
  6. Step 6: Final answer
    x = 7,480.32

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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.