Home / 8,964.36-12,369.42-4,985.46

Finding the Fourth Proportional to 8,964.36, 12,369.42 and 4,985.46

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Solution

The fourth proportional to 8,964.36, 12,369.42 and 4,985.46 is: 6,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.36 : 12,369.42 = 4,985.46 : x
  2. Step 2: Convert to fraction form
    8,964.36/12,369.42 = 4,985.46/x
  3. Step 3: Cross multiply
    8,964.36x = 12,369.42 × 4,985.46
  4. Step 4: Simplify right side
    8,964.36x = 61,667,248.63
  5. Step 5: Solve for x
    x = 61,667,248.63/8,964.36
  6. Step 6: Final answer
    x = 6,879.16

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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.