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Finding the Fourth Proportional to 15,285.36, 22,928.08 and 7,888.48

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Solution

The fourth proportional to 15,285.36, 22,928.08 and 7,888.48 is: 11,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.36 : 22,928.08 = 7,888.48 : x
  2. Step 2: Convert to fraction form
    15,285.36/22,928.08 = 7,888.48/x
  3. Step 3: Cross multiply
    15,285.36x = 22,928.08 × 7,888.48
  4. Step 4: Simplify right side
    15,285.36x = 180,867,700.52
  5. Step 5: Solve for x
    x = 180,867,700.52/15,285.36
  6. Step 6: Final answer
    x = 11,832.74

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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.