Home / 8,970.50-12,379.58-4,937.48

Finding the Fourth Proportional to 8,970.50, 12,379.58 and 4,937.48

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Solution

The fourth proportional to 8,970.50, 12,379.58 and 4,937.48 is: 6,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.50 : 12,379.58 = 4,937.48 : x
  2. Step 2: Convert to fraction form
    8,970.50/12,379.58 = 4,937.48/x
  3. Step 3: Cross multiply
    8,970.50x = 12,379.58 × 4,937.48
  4. Step 4: Simplify right side
    8,970.50x = 61,123,928.66
  5. Step 5: Solve for x
    x = 61,123,928.66/8,970.50
  6. Step 6: Final answer
    x = 6,813.88

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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.