Home / 13,641.90-18,825.63-7,673.57

Finding the Fourth Proportional to 13,641.90, 18,825.63 and 7,673.57

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Solution

The fourth proportional to 13,641.90, 18,825.63 and 7,673.57 is: 10,589.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.90 : 18,825.63 = 7,673.57 : x
  2. Step 2: Convert to fraction form
    13,641.90/18,825.63 = 7,673.57/x
  3. Step 3: Cross multiply
    13,641.90x = 18,825.63 × 7,673.57
  4. Step 4: Simplify right side
    13,641.90x = 144,459,666.70
  5. Step 5: Solve for x
    x = 144,459,666.70/13,641.90
  6. Step 6: Final answer
    x = 10,589.41

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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.