Home / 13,124.02-18,110.49-7,458.02

Finding the Fourth Proportional to 13,124.02, 18,110.49 and 7,458.02

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Solution

The fourth proportional to 13,124.02, 18,110.49 and 7,458.02 is: 10,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.02 : 18,110.49 = 7,458.02 : x
  2. Step 2: Convert to fraction form
    13,124.02/18,110.49 = 7,458.02/x
  3. Step 3: Cross multiply
    13,124.02x = 18,110.49 × 7,458.02
  4. Step 4: Simplify right side
    13,124.02x = 135,068,396.63
  5. Step 5: Solve for x
    x = 135,068,396.63/13,124.02
  6. Step 6: Final answer
    x = 10,291.69

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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.