Home / 8,975.40-12,385.88-4,996.48

Finding the Fourth Proportional to 8,975.40, 12,385.88 and 4,996.48

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Solution

The fourth proportional to 8,975.40, 12,385.88 and 4,996.48 is: 6,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.40 : 12,385.88 = 4,996.48 : x
  2. Step 2: Convert to fraction form
    8,975.40/12,385.88 = 4,996.48/x
  3. Step 3: Cross multiply
    8,975.40x = 12,385.88 × 4,996.48
  4. Step 4: Simplify right side
    8,975.40x = 61,885,801.70
  5. Step 5: Solve for x
    x = 61,885,801.70/8,975.40
  6. Step 6: Final answer
    x = 6,895.05

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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.