Home / 6,877.60-10,316.40-5,225.20

Finding the Fourth Proportional to 6,877.60, 10,316.40 and 5,225.20

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Solution

The fourth proportional to 6,877.60, 10,316.40 and 5,225.20 is: 7,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.60 : 10,316.40 = 5,225.20 : x
  2. Step 2: Convert to fraction form
    6,877.60/10,316.40 = 5,225.20/x
  3. Step 3: Cross multiply
    6,877.60x = 10,316.40 × 5,225.20
  4. Step 4: Simplify right side
    6,877.60x = 53,905,253.28
  5. Step 5: Solve for x
    x = 53,905,253.28/6,877.60
  6. Step 6: Final answer
    x = 7,837.80

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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.