Home / 13,289.10-19,933.67-12,477.17

Finding the Fourth Proportional to 13,289.10, 19,933.67 and 12,477.17

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Solution

The fourth proportional to 13,289.10, 19,933.67 and 12,477.17 is: 18,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.10 : 19,933.67 = 12,477.17 : x
  2. Step 2: Convert to fraction form
    13,289.10/19,933.67 = 12,477.17/x
  3. Step 3: Cross multiply
    13,289.10x = 19,933.67 × 12,477.17
  4. Step 4: Simplify right side
    13,289.10x = 248,715,870.34
  5. Step 5: Solve for x
    x = 248,715,870.34/13,289.10
  6. Step 6: Final answer
    x = 18,715.79

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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.