Home / 13,407.18-18,502.97-7,440.01

Finding the Fourth Proportional to 13,407.18, 18,502.97 and 7,440.01

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Solution

The fourth proportional to 13,407.18, 18,502.97 and 7,440.01 is: 10,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.18 : 18,502.97 = 7,440.01 : x
  2. Step 2: Convert to fraction form
    13,407.18/18,502.97 = 7,440.01/x
  3. Step 3: Cross multiply
    13,407.18x = 18,502.97 × 7,440.01
  4. Step 4: Simplify right side
    13,407.18x = 137,662,198.37
  5. Step 5: Solve for x
    x = 137,662,198.37/13,407.18
  6. Step 6: Final answer
    x = 10,267.80

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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.