Home / 12,807.05-19,219.14-4,487.06

Finding the Fourth Proportional to 12,807.05, 19,219.14 and 4,487.06

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Solution

The fourth proportional to 12,807.05, 19,219.14 and 4,487.06 is: 6,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.05 : 19,219.14 = 4,487.06 : x
  2. Step 2: Convert to fraction form
    12,807.05/19,219.14 = 4,487.06/x
  3. Step 3: Cross multiply
    12,807.05x = 19,219.14 × 4,487.06
  4. Step 4: Simplify right side
    12,807.05x = 86,237,482.38
  5. Step 5: Solve for x
    x = 86,237,482.38/12,807.05
  6. Step 6: Final answer
    x = 6,733.60

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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.