Home / 14,800.61-20,422.59-8,427.47

Finding the Fourth Proportional to 14,800.61, 20,422.59 and 8,427.47

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Solution

The fourth proportional to 14,800.61, 20,422.59 and 8,427.47 is: 11,628.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,800.61 : 20,422.59 = 8,427.47 : x
  2. Step 2: Convert to fraction form
    14,800.61/20,422.59 = 8,427.47/x
  3. Step 3: Cross multiply
    14,800.61x = 20,422.59 × 8,427.47
  4. Step 4: Simplify right side
    14,800.61x = 172,110,630.83
  5. Step 5: Solve for x
    x = 172,110,630.83/14,800.61
  6. Step 6: Final answer
    x = 11,628.62

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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.