Home / 14,798.60-20,421.48-8,426.06

Finding the Fourth Proportional to 14,798.60, 20,421.48 and 8,426.06

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Solution

The fourth proportional to 14,798.60, 20,421.48 and 8,426.06 is: 11,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.60 : 20,421.48 = 8,426.06 : x
  2. Step 2: Convert to fraction form
    14,798.60/20,421.48 = 8,426.06/x
  3. Step 3: Cross multiply
    14,798.60x = 20,421.48 × 8,426.06
  4. Step 4: Simplify right side
    14,798.60x = 172,072,615.77
  5. Step 5: Solve for x
    x = 172,072,615.77/14,798.60
  6. Step 6: Final answer
    x = 11,627.63

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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.