Home / 13,401.51-18,480.93-12,342.03

Finding the Fourth Proportional to 13,401.51, 18,480.93 and 12,342.03

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Solution

The fourth proportional to 13,401.51, 18,480.93 and 12,342.03 is: 17,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.51 : 18,480.93 = 12,342.03 : x
  2. Step 2: Convert to fraction form
    13,401.51/18,480.93 = 12,342.03/x
  3. Step 3: Cross multiply
    13,401.51x = 18,480.93 × 12,342.03
  4. Step 4: Simplify right side
    13,401.51x = 228,092,192.49
  5. Step 5: Solve for x
    x = 228,092,192.49/13,401.51
  6. Step 6: Final answer
    x = 17,019.89

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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.