Home / 11,133.60-16,681.20-5,277.60

Finding the Fourth Proportional to 11,133.60, 16,681.20 and 5,277.60

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Solution

The fourth proportional to 11,133.60, 16,681.20 and 5,277.60 is: 7,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.60 : 16,681.20 = 5,277.60 : x
  2. Step 2: Convert to fraction form
    11,133.60/16,681.20 = 5,277.60/x
  3. Step 3: Cross multiply
    11,133.60x = 16,681.20 × 5,277.60
  4. Step 4: Simplify right side
    11,133.60x = 88,036,701.12
  5. Step 5: Solve for x
    x = 88,036,701.12/11,133.60
  6. Step 6: Final answer
    x = 7,907.30

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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.