Home / 13,516.71-18,653.11-7,548.60

Finding the Fourth Proportional to 13,516.71, 18,653.11 and 7,548.60

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Solution

The fourth proportional to 13,516.71, 18,653.11 and 7,548.60 is: 10,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.71 : 18,653.11 = 7,548.60 : x
  2. Step 2: Convert to fraction form
    13,516.71/18,653.11 = 7,548.60/x
  3. Step 3: Cross multiply
    13,516.71x = 18,653.11 × 7,548.60
  4. Step 4: Simplify right side
    13,516.71x = 140,804,893.91
  5. Step 5: Solve for x
    x = 140,804,893.91/13,516.71
  6. Step 6: Final answer
    x = 10,417.10

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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.