Home / 14,086.84-21,126.88-4,727.20

Finding the Fourth Proportional to 14,086.84, 21,126.88 and 4,727.20

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Solution

The fourth proportional to 14,086.84, 21,126.88 and 4,727.20 is: 7,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.84 : 21,126.88 = 4,727.20 : x
  2. Step 2: Convert to fraction form
    14,086.84/21,126.88 = 4,727.20/x
  3. Step 3: Cross multiply
    14,086.84x = 21,126.88 × 4,727.20
  4. Step 4: Simplify right side
    14,086.84x = 99,870,987.14
  5. Step 5: Solve for x
    x = 99,870,987.14/14,086.84
  6. Step 6: Final answer
    x = 7,089.67

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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.