Home / 7,386.12-11,072.34-3,875.40

Finding the Fourth Proportional to 7,386.12, 11,072.34 and 3,875.40

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Solution

The fourth proportional to 7,386.12, 11,072.34 and 3,875.40 is: 5,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.12 : 11,072.34 = 3,875.40 : x
  2. Step 2: Convert to fraction form
    7,386.12/11,072.34 = 3,875.40/x
  3. Step 3: Cross multiply
    7,386.12x = 11,072.34 × 3,875.40
  4. Step 4: Simplify right side
    7,386.12x = 42,909,746.44
  5. Step 5: Solve for x
    x = 42,909,746.44/7,386.12
  6. Step 6: Final answer
    x = 5,809.51

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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.