Home / 8,772.34-12,106.86-4,996.40

Finding the Fourth Proportional to 8,772.34, 12,106.86 and 4,996.40

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Solution

The fourth proportional to 8,772.34, 12,106.86 and 4,996.40 is: 6,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.34 : 12,106.86 = 4,996.40 : x
  2. Step 2: Convert to fraction form
    8,772.34/12,106.86 = 4,996.40/x
  3. Step 3: Cross multiply
    8,772.34x = 12,106.86 × 4,996.40
  4. Step 4: Simplify right side
    8,772.34x = 60,490,715.30
  5. Step 5: Solve for x
    x = 60,490,715.30/8,772.34
  6. Step 6: Final answer
    x = 6,895.62

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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.