Home / 9,985.89-14,977.54-2,590.86

Finding the Fourth Proportional to 9,985.89, 14,977.54 and 2,590.86

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Solution

The fourth proportional to 9,985.89, 14,977.54 and 2,590.86 is: 3,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.89 : 14,977.54 = 2,590.86 : x
  2. Step 2: Convert to fraction form
    9,985.89/14,977.54 = 2,590.86/x
  3. Step 3: Cross multiply
    9,985.89x = 14,977.54 × 2,590.86
  4. Step 4: Simplify right side
    9,985.89x = 38,804,709.28
  5. Step 5: Solve for x
    x = 38,804,709.28/9,985.89
  6. Step 6: Final answer
    x = 3,885.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.