Home / 10,558.93-15,840.74-3,985.18

Finding the Fourth Proportional to 10,558.93, 15,840.74 and 3,985.18

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Solution

The fourth proportional to 10,558.93, 15,840.74 and 3,985.18 is: 5,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.93 : 15,840.74 = 3,985.18 : x
  2. Step 2: Convert to fraction form
    10,558.93/15,840.74 = 3,985.18/x
  3. Step 3: Cross multiply
    10,558.93x = 15,840.74 × 3,985.18
  4. Step 4: Simplify right side
    10,558.93x = 63,128,200.23
  5. Step 5: Solve for x
    x = 63,128,200.23/10,558.93
  6. Step 6: Final answer
    x = 5,978.66

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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.