Home / 13,407.66-18,501.95-7,439.27

Finding the Fourth Proportional to 13,407.66, 18,501.95 and 7,439.27

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Solution

The fourth proportional to 13,407.66, 18,501.95 and 7,439.27 is: 10,265.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.66 : 18,501.95 = 7,439.27 : x
  2. Step 2: Convert to fraction form
    13,407.66/18,501.95 = 7,439.27/x
  3. Step 3: Cross multiply
    13,407.66x = 18,501.95 × 7,439.27
  4. Step 4: Simplify right side
    13,407.66x = 137,640,871.87
  5. Step 5: Solve for x
    x = 137,640,871.87/13,407.66
  6. Step 6: Final answer
    x = 10,265.84

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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.