Home / 10,380.93-15,570.88-2,985.33

Finding the Fourth Proportional to 10,380.93, 15,570.88 and 2,985.33

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Solution

The fourth proportional to 10,380.93, 15,570.88 and 2,985.33 is: 4,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.93 : 15,570.88 = 2,985.33 : x
  2. Step 2: Convert to fraction form
    10,380.93/15,570.88 = 2,985.33/x
  3. Step 3: Cross multiply
    10,380.93x = 15,570.88 × 2,985.33
  4. Step 4: Simplify right side
    10,380.93x = 46,484,215.19
  5. Step 5: Solve for x
    x = 46,484,215.19/10,380.93
  6. Step 6: Final answer
    x = 4,477.85

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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.