Home / 7,801.86-10,763.55-4,812.50

Finding the Fourth Proportional to 7,801.86, 10,763.55 and 4,812.50

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Solution

The fourth proportional to 7,801.86, 10,763.55 and 4,812.50 is: 6,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.86 : 10,763.55 = 4,812.50 : x
  2. Step 2: Convert to fraction form
    7,801.86/10,763.55 = 4,812.50/x
  3. Step 3: Cross multiply
    7,801.86x = 10,763.55 × 4,812.50
  4. Step 4: Simplify right side
    7,801.86x = 51,799,584.38
  5. Step 5: Solve for x
    x = 51,799,584.38/7,801.86
  6. Step 6: Final answer
    x = 6,639.39

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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.