Home / 9,905.46-13,669.64-5,429.11

Finding the Fourth Proportional to 9,905.46, 13,669.64 and 5,429.11

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Solution

The fourth proportional to 9,905.46, 13,669.64 and 5,429.11 is: 7,492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.46 : 13,669.64 = 5,429.11 : x
  2. Step 2: Convert to fraction form
    9,905.46/13,669.64 = 5,429.11/x
  3. Step 3: Cross multiply
    9,905.46x = 13,669.64 × 5,429.11
  4. Step 4: Simplify right side
    9,905.46x = 74,213,952.07
  5. Step 5: Solve for x
    x = 74,213,952.07/9,905.46
  6. Step 6: Final answer
    x = 7,492.23

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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.