Home / 13,927.12-20,867.22-6,897.76

Finding the Fourth Proportional to 13,927.12, 20,867.22 and 6,897.76

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Solution

The fourth proportional to 13,927.12, 20,867.22 and 6,897.76 is: 10,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.12 : 20,867.22 = 6,897.76 : x
  2. Step 2: Convert to fraction form
    13,927.12/20,867.22 = 6,897.76/x
  3. Step 3: Cross multiply
    13,927.12x = 20,867.22 × 6,897.76
  4. Step 4: Simplify right side
    13,927.12x = 143,937,075.43
  5. Step 5: Solve for x
    x = 143,937,075.43/13,927.12
  6. Step 6: Final answer
    x = 10,335.02

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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.