Home / 12,783.60-19,175.40-9,503.10

Finding the Fourth Proportional to 12,783.60, 19,175.40 and 9,503.10

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Solution

The fourth proportional to 12,783.60, 19,175.40 and 9,503.10 is: 14,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783.60 : 19,175.40 = 9,503.10 : x
  2. Step 2: Convert to fraction form
    12,783.60/19,175.40 = 9,503.10/x
  3. Step 3: Cross multiply
    12,783.60x = 19,175.40 × 9,503.10
  4. Step 4: Simplify right side
    12,783.60x = 182,225,743.74
  5. Step 5: Solve for x
    x = 182,225,743.74/12,783.60
  6. Step 6: Final answer
    x = 14,254.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.