Home / 8,679.47-11,977.62-4,700.57

Finding the Fourth Proportional to 8,679.47, 11,977.62 and 4,700.57

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Solution

The fourth proportional to 8,679.47, 11,977.62 and 4,700.57 is: 6,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.47 : 11,977.62 = 4,700.57 : x
  2. Step 2: Convert to fraction form
    8,679.47/11,977.62 = 4,700.57/x
  3. Step 3: Cross multiply
    8,679.47x = 11,977.62 × 4,700.57
  4. Step 4: Simplify right side
    8,679.47x = 56,301,581.36
  5. Step 5: Solve for x
    x = 56,301,581.36/8,679.47
  6. Step 6: Final answer
    x = 6,486.76

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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.