Home / 18,723.15-28,088.70-7,036.47

Finding the Fourth Proportional to 18,723.15, 28,088.70 and 7,036.47

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Solution

The fourth proportional to 18,723.15, 28,088.70 and 7,036.47 is: 10,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.15 : 28,088.70 = 7,036.47 : x
  2. Step 2: Convert to fraction form
    18,723.15/28,088.70 = 7,036.47/x
  3. Step 3: Cross multiply
    18,723.15x = 28,088.70 × 7,036.47
  4. Step 4: Simplify right side
    18,723.15x = 197,645,294.89
  5. Step 5: Solve for x
    x = 197,645,294.89/18,723.15
  6. Step 6: Final answer
    x = 10,556.20

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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.