Home / 12,148.48-16,768.60-7,113.88

Finding the Fourth Proportional to 12,148.48, 16,768.60 and 7,113.88

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Solution

The fourth proportional to 12,148.48, 16,768.60 and 7,113.88 is: 9,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.48 : 16,768.60 = 7,113.88 : x
  2. Step 2: Convert to fraction form
    12,148.48/16,768.60 = 7,113.88/x
  3. Step 3: Cross multiply
    12,148.48x = 16,768.60 × 7,113.88
  4. Step 4: Simplify right side
    12,148.48x = 119,289,808.17
  5. Step 5: Solve for x
    x = 119,289,808.17/12,148.48
  6. Step 6: Final answer
    x = 9,819.32

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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.