Home / 12,678.53-19,013.13-4,356.18

Finding the Fourth Proportional to 12,678.53, 19,013.13 and 4,356.18

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Solution

The fourth proportional to 12,678.53, 19,013.13 and 4,356.18 is: 6,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.53 : 19,013.13 = 4,356.18 : x
  2. Step 2: Convert to fraction form
    12,678.53/19,013.13 = 4,356.18/x
  3. Step 3: Cross multiply
    12,678.53x = 19,013.13 × 4,356.18
  4. Step 4: Simplify right side
    12,678.53x = 82,824,616.64
  5. Step 5: Solve for x
    x = 82,824,616.64/12,678.53
  6. Step 6: Final answer
    x = 6,532.67

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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.