Home / 10,709.60-16,064.40-4,877.60

Finding the Fourth Proportional to 10,709.60, 16,064.40 and 4,877.60

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Solution

The fourth proportional to 10,709.60, 16,064.40 and 4,877.60 is: 7,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.60 : 16,064.40 = 4,877.60 : x
  2. Step 2: Convert to fraction form
    10,709.60/16,064.40 = 4,877.60/x
  3. Step 3: Cross multiply
    10,709.60x = 16,064.40 × 4,877.60
  4. Step 4: Simplify right side
    10,709.60x = 78,355,717.44
  5. Step 5: Solve for x
    x = 78,355,717.44/10,709.60
  6. Step 6: Final answer
    x = 7,316.40

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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.