Home / 8,965.16-12,371.40-4,985.47

Finding the Fourth Proportional to 8,965.16, 12,371.40 and 4,985.47

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Solution

The fourth proportional to 8,965.16, 12,371.40 and 4,985.47 is: 6,879.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.16 : 12,371.40 = 4,985.47 : x
  2. Step 2: Convert to fraction form
    8,965.16/12,371.40 = 4,985.47/x
  3. Step 3: Cross multiply
    8,965.16x = 12,371.40 × 4,985.47
  4. Step 4: Simplify right side
    8,965.16x = 61,677,259.02
  5. Step 5: Solve for x
    x = 61,677,259.02/8,965.16
  6. Step 6: Final answer
    x = 6,879.66

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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.