Home / 8,985.10-12,398.30-5,005.92

Finding the Fourth Proportional to 8,985.10, 12,398.30 and 5,005.92

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Solution

The fourth proportional to 8,985.10, 12,398.30 and 5,005.92 is: 6,907.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.10 : 12,398.30 = 5,005.92 : x
  2. Step 2: Convert to fraction form
    8,985.10/12,398.30 = 5,005.92/x
  3. Step 3: Cross multiply
    8,985.10x = 12,398.30 × 5,005.92
  4. Step 4: Simplify right side
    8,985.10x = 62,064,897.94
  5. Step 5: Solve for x
    x = 62,064,897.94/8,985.10
  6. Step 6: Final answer
    x = 6,907.54

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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.