Home / 13,993.63-20,888.06-12,332.93

Finding the Fourth Proportional to 13,993.63, 20,888.06 and 12,332.93

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Solution

The fourth proportional to 13,993.63, 20,888.06 and 12,332.93 is: 18,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.63 : 20,888.06 = 12,332.93 : x
  2. Step 2: Convert to fraction form
    13,993.63/20,888.06 = 12,332.93/x
  3. Step 3: Cross multiply
    13,993.63x = 20,888.06 × 12,332.93
  4. Step 4: Simplify right side
    13,993.63x = 257,610,981.82
  5. Step 5: Solve for x
    x = 257,610,981.82/13,993.63
  6. Step 6: Final answer
    x = 18,409.16

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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.