Home / 10,783.60-16,175.40-7,284.40

Finding the Fourth Proportional to 10,783.60, 16,175.40 and 7,284.40

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Solution

The fourth proportional to 10,783.60, 16,175.40 and 7,284.40 is: 10,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.60 : 16,175.40 = 7,284.40 : x
  2. Step 2: Convert to fraction form
    10,783.60/16,175.40 = 7,284.40/x
  3. Step 3: Cross multiply
    10,783.60x = 16,175.40 × 7,284.40
  4. Step 4: Simplify right side
    10,783.60x = 117,828,083.76
  5. Step 5: Solve for x
    x = 117,828,083.76/10,783.60
  6. Step 6: Final answer
    x = 10,926.60

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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.