Home / 9,892.80-13,651.64-5,416.47

Finding the Fourth Proportional to 9,892.80, 13,651.64 and 5,416.47

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Solution

The fourth proportional to 9,892.80, 13,651.64 and 5,416.47 is: 7,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,892.80 : 13,651.64 = 5,416.47 : x
  2. Step 2: Convert to fraction form
    9,892.80/13,651.64 = 5,416.47/x
  3. Step 3: Cross multiply
    9,892.80x = 13,651.64 × 5,416.47
  4. Step 4: Simplify right side
    9,892.80x = 73,943,603.17
  5. Step 5: Solve for x
    x = 73,943,603.17/9,892.80
  6. Step 6: Final answer
    x = 7,474.49

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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.