Home / 18,987.35-28,483.74-5,840.82

Finding the Fourth Proportional to 18,987.35, 28,483.74 and 5,840.82

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Solution

The fourth proportional to 18,987.35, 28,483.74 and 5,840.82 is: 8,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.35 : 28,483.74 = 5,840.82 : x
  2. Step 2: Convert to fraction form
    18,987.35/28,483.74 = 5,840.82/x
  3. Step 3: Cross multiply
    18,987.35x = 28,483.74 × 5,840.82
  4. Step 4: Simplify right side
    18,987.35x = 166,368,398.27
  5. Step 5: Solve for x
    x = 166,368,398.27/18,987.35
  6. Step 6: Final answer
    x = 8,762.07

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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.