Home / 7,719.93-10,647.88-4,887.77

Finding the Fourth Proportional to 7,719.93, 10,647.88 and 4,887.77

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Solution

The fourth proportional to 7,719.93, 10,647.88 and 4,887.77 is: 6,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.93 : 10,647.88 = 4,887.77 : x
  2. Step 2: Convert to fraction form
    7,719.93/10,647.88 = 4,887.77/x
  3. Step 3: Cross multiply
    7,719.93x = 10,647.88 × 4,887.77
  4. Step 4: Simplify right side
    7,719.93x = 52,044,322.97
  5. Step 5: Solve for x
    x = 52,044,322.97/7,719.93
  6. Step 6: Final answer
    x = 6,741.55

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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.