Home / 8,255.06-12,385.75-4,970.50

Finding the Fourth Proportional to 8,255.06, 12,385.75 and 4,970.50

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Solution

The fourth proportional to 8,255.06, 12,385.75 and 4,970.50 is: 7,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.06 : 12,385.75 = 4,970.50 : x
  2. Step 2: Convert to fraction form
    8,255.06/12,385.75 = 4,970.50/x
  3. Step 3: Cross multiply
    8,255.06x = 12,385.75 × 4,970.50
  4. Step 4: Simplify right side
    8,255.06x = 61,563,370.38
  5. Step 5: Solve for x
    x = 61,563,370.38/8,255.06
  6. Step 6: Final answer
    x = 7,457.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.