Home / 13,897.90-20,850.75-5,583.76

Finding the Fourth Proportional to 13,897.90, 20,850.75 and 5,583.76

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Solution

The fourth proportional to 13,897.90, 20,850.75 and 5,583.76 is: 8,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.90 : 20,850.75 = 5,583.76 : x
  2. Step 2: Convert to fraction form
    13,897.90/20,850.75 = 5,583.76/x
  3. Step 3: Cross multiply
    13,897.90x = 20,850.75 × 5,583.76
  4. Step 4: Simplify right side
    13,897.90x = 116,425,547.40
  5. Step 5: Solve for x
    x = 116,425,547.40/13,897.90
  6. Step 6: Final answer
    x = 8,377.20

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1.5x scale

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.