Home / 8,787.30-12,126.64-4,808.67

Finding the Fourth Proportional to 8,787.30, 12,126.64 and 4,808.67

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Solution

The fourth proportional to 8,787.30, 12,126.64 and 4,808.67 is: 6,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.30 : 12,126.64 = 4,808.67 : x
  2. Step 2: Convert to fraction form
    8,787.30/12,126.64 = 4,808.67/x
  3. Step 3: Cross multiply
    8,787.30x = 12,126.64 × 4,808.67
  4. Step 4: Simplify right side
    8,787.30x = 58,312,947.96
  5. Step 5: Solve for x
    x = 58,312,947.96/8,787.30
  6. Step 6: Final answer
    x = 6,636.05

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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.