Home / 13,307.58-18,363.07-7,641.22

Finding the Fourth Proportional to 13,307.58, 18,363.07 and 7,641.22

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Solution

The fourth proportional to 13,307.58, 18,363.07 and 7,641.22 is: 10,544.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.58 : 18,363.07 = 7,641.22 : x
  2. Step 2: Convert to fraction form
    13,307.58/18,363.07 = 7,641.22/x
  3. Step 3: Cross multiply
    13,307.58x = 18,363.07 × 7,641.22
  4. Step 4: Simplify right side
    13,307.58x = 140,316,257.75
  5. Step 5: Solve for x
    x = 140,316,257.75/13,307.58
  6. Step 6: Final answer
    x = 10,544.09

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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.