Home / 18,741.40-25,864.10-10,784.82

Finding the Fourth Proportional to 18,741.40, 25,864.10 and 10,784.82

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Solution

The fourth proportional to 18,741.40, 25,864.10 and 10,784.82 is: 14,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.40 : 25,864.10 = 10,784.82 : x
  2. Step 2: Convert to fraction form
    18,741.40/25,864.10 = 10,784.82/x
  3. Step 3: Cross multiply
    18,741.40x = 25,864.10 × 10,784.82
  4. Step 4: Simplify right side
    18,741.40x = 278,939,479.72
  5. Step 5: Solve for x
    x = 278,939,479.72/18,741.40
  6. Step 6: Final answer
    x = 14,883.60

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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.