Home / 11,948.85-16,490.28-7,169

Finding the Fourth Proportional to 11,948.85, 16,490.28 and 7,169

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Solution

The fourth proportional to 11,948.85, 16,490.28 and 7,169 is: 9,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.85 : 16,490.28 = 7,169 : x
  2. Step 2: Convert to fraction form
    11,948.85/16,490.28 = 7,169/x
  3. Step 3: Cross multiply
    11,948.85x = 16,490.28 × 7,169
  4. Step 4: Simplify right side
    11,948.85x = 118,218,817.32
  5. Step 5: Solve for x
    x = 118,218,817.32/11,948.85
  6. Step 6: Final answer
    x = 9,893.74

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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.