Home / 11,820.04-16,312.44-7,104.40

Finding the Fourth Proportional to 11,820.04, 16,312.44 and 7,104.40

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Solution

The fourth proportional to 11,820.04, 16,312.44 and 7,104.40 is: 9,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.04 : 16,312.44 = 7,104.40 : x
  2. Step 2: Convert to fraction form
    11,820.04/16,312.44 = 7,104.40/x
  3. Step 3: Cross multiply
    11,820.04x = 16,312.44 × 7,104.40
  4. Step 4: Simplify right side
    11,820.04x = 115,890,098.74
  5. Step 5: Solve for x
    x = 115,890,098.74/11,820.04
  6. Step 6: Final answer
    x = 9,804.54

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1.5x scale

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.