Home / 14,406.09-19,888.23-9,953.78

Finding the Fourth Proportional to 14,406.09, 19,888.23 and 9,953.78

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Solution

The fourth proportional to 14,406.09, 19,888.23 and 9,953.78 is: 13,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,406.09 : 19,888.23 = 9,953.78 : x
  2. Step 2: Convert to fraction form
    14,406.09/19,888.23 = 9,953.78/x
  3. Step 3: Cross multiply
    14,406.09x = 19,888.23 × 9,953.78
  4. Step 4: Simplify right side
    14,406.09x = 197,962,966.57
  5. Step 5: Solve for x
    x = 197,962,966.57/14,406.09
  6. Step 6: Final answer
    x = 13,741.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.