Home / 13,407.41-18,501.60-7,439.02

Finding the Fourth Proportional to 13,407.41, 18,501.60 and 7,439.02

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Solution

The fourth proportional to 13,407.41, 18,501.60 and 7,439.02 is: 10,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.41 : 18,501.60 = 7,439.02 : x
  2. Step 2: Convert to fraction form
    13,407.41/18,501.60 = 7,439.02/x
  3. Step 3: Cross multiply
    13,407.41x = 18,501.60 × 7,439.02
  4. Step 4: Simplify right side
    13,407.41x = 137,633,772.43
  5. Step 5: Solve for x
    x = 137,633,772.43/13,407.41
  6. Step 6: Final answer
    x = 10,265.50

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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.