Home / 12,354.06-17,048.40-6,688.76

Finding the Fourth Proportional to 12,354.06, 17,048.40 and 6,688.76

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Solution

The fourth proportional to 12,354.06, 17,048.40 and 6,688.76 is: 9,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.06 : 17,048.40 = 6,688.76 : x
  2. Step 2: Convert to fraction form
    12,354.06/17,048.40 = 6,688.76/x
  3. Step 3: Cross multiply
    12,354.06x = 17,048.40 × 6,688.76
  4. Step 4: Simplify right side
    12,354.06x = 114,032,743.11
  5. Step 5: Solve for x
    x = 114,032,743.11/12,354.06
  6. Step 6: Final answer
    x = 9,230.38

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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.