Home / 8,860.60-13,291.40-3,315.40

Finding the Fourth Proportional to 8,860.60, 13,291.40 and 3,315.40

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Solution

The fourth proportional to 8,860.60, 13,291.40 and 3,315.40 is: 4,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.60 : 13,291.40 = 3,315.40 : x
  2. Step 2: Convert to fraction form
    8,860.60/13,291.40 = 3,315.40/x
  3. Step 3: Cross multiply
    8,860.60x = 13,291.40 × 3,315.40
  4. Step 4: Simplify right side
    8,860.60x = 44,066,307.56
  5. Step 5: Solve for x
    x = 44,066,307.56/8,860.60
  6. Step 6: Final answer
    x = 4,973.29

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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.