Home / 14,746.40-20,349.68-8,458.36

Finding the Fourth Proportional to 14,746.40, 20,349.68 and 8,458.36

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Solution

The fourth proportional to 14,746.40, 20,349.68 and 8,458.36 is: 11,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,746.40 : 20,349.68 = 8,458.36 : x
  2. Step 2: Convert to fraction form
    14,746.40/20,349.68 = 8,458.36/x
  3. Step 3: Cross multiply
    14,746.40x = 20,349.68 × 8,458.36
  4. Step 4: Simplify right side
    14,746.40x = 172,124,919.32
  5. Step 5: Solve for x
    x = 172,124,919.32/14,746.40
  6. Step 6: Final answer
    x = 11,672.33

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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.