Home / 13,985.60-20,973.40-4,623.89

Finding the Fourth Proportional to 13,985.60, 20,973.40 and 4,623.89

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Solution

The fourth proportional to 13,985.60, 20,973.40 and 4,623.89 is: 6,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.60 : 20,973.40 = 4,623.89 : x
  2. Step 2: Convert to fraction form
    13,985.60/20,973.40 = 4,623.89/x
  3. Step 3: Cross multiply
    13,985.60x = 20,973.40 × 4,623.89
  4. Step 4: Simplify right side
    13,985.60x = 96,978,578.10
  5. Step 5: Solve for x
    x = 96,978,578.10/13,985.60
  6. Step 6: Final answer
    x = 6,934.18

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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.