Home / 8,964.74-12,371.20-4,985.36

Finding the Fourth Proportional to 8,964.74, 12,371.20 and 4,985.36

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Solution

The fourth proportional to 8,964.74, 12,371.20 and 4,985.36 is: 6,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.74 : 12,371.20 = 4,985.36 : x
  2. Step 2: Convert to fraction form
    8,964.74/12,371.20 = 4,985.36/x
  3. Step 3: Cross multiply
    8,964.74x = 12,371.20 × 4,985.36
  4. Step 4: Simplify right side
    8,964.74x = 61,674,885.63
  5. Step 5: Solve for x
    x = 61,674,885.63/8,964.74
  6. Step 6: Final answer
    x = 6,879.72

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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.