Home / 13,355.67-18,430.06-7,386.94

Finding the Fourth Proportional to 13,355.67, 18,430.06 and 7,386.94

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Solution

The fourth proportional to 13,355.67, 18,430.06 and 7,386.94 is: 10,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.67 : 18,430.06 = 7,386.94 : x
  2. Step 2: Convert to fraction form
    13,355.67/18,430.06 = 7,386.94/x
  3. Step 3: Cross multiply
    13,355.67x = 18,430.06 × 7,386.94
  4. Step 4: Simplify right side
    13,355.67x = 136,141,618.33
  5. Step 5: Solve for x
    x = 136,141,618.33/13,355.67
  6. Step 6: Final answer
    x = 10,193.54

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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.