Home / 25,125.49-37,688.39-8,485.61

Finding the Fourth Proportional to 25,125.49, 37,688.39 and 8,485.61

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Solution

The fourth proportional to 25,125.49, 37,688.39 and 8,485.61 is: 12,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,125.49 : 37,688.39 = 8,485.61 : x
  2. Step 2: Convert to fraction form
    25,125.49/37,688.39 = 8,485.61/x
  3. Step 3: Cross multiply
    25,125.49x = 37,688.39 × 8,485.61
  4. Step 4: Simplify right side
    25,125.49x = 319,808,992.02
  5. Step 5: Solve for x
    x = 319,808,992.02/25,125.49
  6. Step 6: Final answer
    x = 12,728.47

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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.