Home / 12,818.04-17,688.06-7,227.96

Finding the Fourth Proportional to 12,818.04, 17,688.06 and 7,227.96

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Solution

The fourth proportional to 12,818.04, 17,688.06 and 7,227.96 is: 9,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.04 : 17,688.06 = 7,227.96 : x
  2. Step 2: Convert to fraction form
    12,818.04/17,688.06 = 7,227.96/x
  3. Step 3: Cross multiply
    12,818.04x = 17,688.06 × 7,227.96
  4. Step 4: Simplify right side
    12,818.04x = 127,848,590.16
  5. Step 5: Solve for x
    x = 127,848,590.16/12,818.04
  6. Step 6: Final answer
    x = 9,974.11

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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.