Home / 14,303.72-21,357.73-12,813.32

Finding the Fourth Proportional to 14,303.72, 21,357.73 and 12,813.32

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Solution

The fourth proportional to 14,303.72, 21,357.73 and 12,813.32 is: 19,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.72 : 21,357.73 = 12,813.32 : x
  2. Step 2: Convert to fraction form
    14,303.72/21,357.73 = 12,813.32/x
  3. Step 3: Cross multiply
    14,303.72x = 21,357.73 × 12,813.32
  4. Step 4: Simplify right side
    14,303.72x = 273,663,428.96
  5. Step 5: Solve for x
    x = 273,663,428.96/14,303.72
  6. Step 6: Final answer
    x = 19,132.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.