Home / 10,820.44-14,918.68-9,030.50

Finding the Fourth Proportional to 10,820.44, 14,918.68 and 9,030.50

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Solution

The fourth proportional to 10,820.44, 14,918.68 and 9,030.50 is: 12,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.44 : 14,918.68 = 9,030.50 : x
  2. Step 2: Convert to fraction form
    10,820.44/14,918.68 = 9,030.50/x
  3. Step 3: Cross multiply
    10,820.44x = 14,918.68 × 9,030.50
  4. Step 4: Simplify right side
    10,820.44x = 134,723,139.74
  5. Step 5: Solve for x
    x = 134,723,139.74/10,820.44
  6. Step 6: Final answer
    x = 12,450.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.