Home / 12,011.46-18,019.54-4,615.35

Finding the Fourth Proportional to 12,011.46, 18,019.54 and 4,615.35

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Solution

The fourth proportional to 12,011.46, 18,019.54 and 4,615.35 is: 6,923.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.46 : 18,019.54 = 4,615.35 : x
  2. Step 2: Convert to fraction form
    12,011.46/18,019.54 = 4,615.35/x
  3. Step 3: Cross multiply
    12,011.46x = 18,019.54 × 4,615.35
  4. Step 4: Simplify right side
    12,011.46x = 83,166,483.94
  5. Step 5: Solve for x
    x = 83,166,483.94/12,011.46
  6. Step 6: Final answer
    x = 6,923.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.