Home / 7,875.66-10,868.33-4,518.55

Finding the Fourth Proportional to 7,875.66, 10,868.33 and 4,518.55

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Solution

The fourth proportional to 7,875.66, 10,868.33 and 4,518.55 is: 6,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.66 : 10,868.33 = 4,518.55 : x
  2. Step 2: Convert to fraction form
    7,875.66/10,868.33 = 4,518.55/x
  3. Step 3: Cross multiply
    7,875.66x = 10,868.33 × 4,518.55
  4. Step 4: Simplify right side
    7,875.66x = 49,109,091.99
  5. Step 5: Solve for x
    x = 49,109,091.99/7,875.66
  6. Step 6: Final answer
    x = 6,235.55

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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.