Home / 8,901.14-12,282.74-5,123.30

Finding the Fourth Proportional to 8,901.14, 12,282.74 and 5,123.30

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Solution

The fourth proportional to 8,901.14, 12,282.74 and 5,123.30 is: 7,069.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.14 : 12,282.74 = 5,123.30 : x
  2. Step 2: Convert to fraction form
    8,901.14/12,282.74 = 5,123.30/x
  3. Step 3: Cross multiply
    8,901.14x = 12,282.74 × 5,123.30
  4. Step 4: Simplify right side
    8,901.14x = 62,928,161.84
  5. Step 5: Solve for x
    x = 62,928,161.84/8,901.14
  6. Step 6: Final answer
    x = 7,069.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.