Home / 11,281.23-15,551.79-7,913.60

Finding the Fourth Proportional to 11,281.23, 15,551.79 and 7,913.60

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Solution

The fourth proportional to 11,281.23, 15,551.79 and 7,913.60 is: 10,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.23 : 15,551.79 = 7,913.60 : x
  2. Step 2: Convert to fraction form
    11,281.23/15,551.79 = 7,913.60/x
  3. Step 3: Cross multiply
    11,281.23x = 15,551.79 × 7,913.60
  4. Step 4: Simplify right side
    11,281.23x = 123,070,567.59
  5. Step 5: Solve for x
    x = 123,070,567.59/11,281.23
  6. Step 6: Final answer
    x = 10,909.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.