Home / 13,407.35-18,486.36-10,881.50

Finding the Fourth Proportional to 13,407.35, 18,486.36 and 10,881.50

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Solution

The fourth proportional to 13,407.35, 18,486.36 and 10,881.50 is: 15,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.35 : 18,486.36 = 10,881.50 : x
  2. Step 2: Convert to fraction form
    13,407.35/18,486.36 = 10,881.50/x
  3. Step 3: Cross multiply
    13,407.35x = 18,486.36 × 10,881.50
  4. Step 4: Simplify right side
    13,407.35x = 201,159,233.91
  5. Step 5: Solve for x
    x = 201,159,233.91/13,407.35
  6. Step 6: Final answer
    x = 15,003.66

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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.