Home / 13,643.04-18,827.32-7,674.75

Finding the Fourth Proportional to 13,643.04, 18,827.32 and 7,674.75

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Solution

The fourth proportional to 13,643.04, 18,827.32 and 7,674.75 is: 10,591.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.04 : 18,827.32 = 7,674.75 : x
  2. Step 2: Convert to fraction form
    13,643.04/18,827.32 = 7,674.75/x
  3. Step 3: Cross multiply
    13,643.04x = 18,827.32 × 7,674.75
  4. Step 4: Simplify right side
    13,643.04x = 144,494,969.37
  5. Step 5: Solve for x
    x = 144,494,969.37/13,643.04
  6. Step 6: Final answer
    x = 10,591.11

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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.