Home / 8,977.57-12,389.57-4,998.67

Finding the Fourth Proportional to 8,977.57, 12,389.57 and 4,998.67

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Solution

The fourth proportional to 8,977.57, 12,389.57 and 4,998.67 is: 6,898.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.57 : 12,389.57 = 4,998.67 : x
  2. Step 2: Convert to fraction form
    8,977.57/12,389.57 = 4,998.67/x
  3. Step 3: Cross multiply
    8,977.57x = 12,389.57 × 4,998.67
  4. Step 4: Simplify right side
    8,977.57x = 61,931,371.87
  5. Step 5: Solve for x
    x = 61,931,371.87/8,977.57
  6. Step 6: Final answer
    x = 6,898.46

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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.