Home / 18,708.39-28,038.34-7,602.18

Finding the Fourth Proportional to 18,708.39, 28,038.34 and 7,602.18

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Solution

The fourth proportional to 18,708.39, 28,038.34 and 7,602.18 is: 11,393.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.39 : 28,038.34 = 7,602.18 : x
  2. Step 2: Convert to fraction form
    18,708.39/28,038.34 = 7,602.18/x
  3. Step 3: Cross multiply
    18,708.39x = 28,038.34 × 7,602.18
  4. Step 4: Simplify right side
    18,708.39x = 213,152,367.39
  5. Step 5: Solve for x
    x = 213,152,367.39/18,708.39
  6. Step 6: Final answer
    x = 11,393.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.