Home / 11,819.46-16,312.38-6,784.50

Finding the Fourth Proportional to 11,819.46, 16,312.38 and 6,784.50

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Solution

The fourth proportional to 11,819.46, 16,312.38 and 6,784.50 is: 9,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.46 : 16,312.38 = 6,784.50 : x
  2. Step 2: Convert to fraction form
    11,819.46/16,312.38 = 6,784.50/x
  3. Step 3: Cross multiply
    11,819.46x = 16,312.38 × 6,784.50
  4. Step 4: Simplify right side
    11,819.46x = 110,671,342.11
  5. Step 5: Solve for x
    x = 110,671,342.11/11,819.46
  6. Step 6: Final answer
    x = 9,363.49

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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.