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Finding the Fourth Proportional to 12,998.15, 19,501.01 and 4,677.99

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Solution

The fourth proportional to 12,998.15, 19,501.01 and 4,677.99 is: 7,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998.15 : 19,501.01 = 4,677.99 : x
  2. Step 2: Convert to fraction form
    12,998.15/19,501.01 = 4,677.99/x
  3. Step 3: Cross multiply
    12,998.15x = 19,501.01 × 4,677.99
  4. Step 4: Simplify right side
    12,998.15x = 91,225,529.77
  5. Step 5: Solve for x
    x = 91,225,529.77/12,998.15
  6. Step 6: Final answer
    x = 7,018.35

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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.