Home / 13,125.33-18,110.93-7,535.25

Finding the Fourth Proportional to 13,125.33, 18,110.93 and 7,535.25

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Solution

The fourth proportional to 13,125.33, 18,110.93 and 7,535.25 is: 10,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.33 : 18,110.93 = 7,535.25 : x
  2. Step 2: Convert to fraction form
    13,125.33/18,110.93 = 7,535.25/x
  3. Step 3: Cross multiply
    13,125.33x = 18,110.93 × 7,535.25
  4. Step 4: Simplify right side
    13,125.33x = 136,470,347.61
  5. Step 5: Solve for x
    x = 136,470,347.61/13,125.33
  6. Step 6: Final answer
    x = 10,397.48

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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.