Home / 10,911.96-16,368.48-6,557.40

Finding the Fourth Proportional to 10,911.96, 16,368.48 and 6,557.40

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Solution

The fourth proportional to 10,911.96, 16,368.48 and 6,557.40 is: 9,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.96 : 16,368.48 = 6,557.40 : x
  2. Step 2: Convert to fraction form
    10,911.96/16,368.48 = 6,557.40/x
  3. Step 3: Cross multiply
    10,911.96x = 16,368.48 × 6,557.40
  4. Step 4: Simplify right side
    10,911.96x = 107,334,670.75
  5. Step 5: Solve for x
    x = 107,334,670.75/10,911.96
  6. Step 6: Final answer
    x = 9,836.42

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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.