Home / 13,639.49-18,823.48-7,591.07

Finding the Fourth Proportional to 13,639.49, 18,823.48 and 7,591.07

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Solution

The fourth proportional to 13,639.49, 18,823.48 and 7,591.07 is: 10,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.49 : 18,823.48 = 7,591.07 : x
  2. Step 2: Convert to fraction form
    13,639.49/18,823.48 = 7,591.07/x
  3. Step 3: Cross multiply
    13,639.49x = 18,823.48 × 7,591.07
  4. Step 4: Simplify right side
    13,639.49x = 142,890,354.32
  5. Step 5: Solve for x
    x = 142,890,354.32/13,639.49
  6. Step 6: Final answer
    x = 10,476.22

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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.