Home / 19,125.75-28,688.58-5,085.77

Finding the Fourth Proportional to 19,125.75, 28,688.58 and 5,085.77

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Solution

The fourth proportional to 19,125.75, 28,688.58 and 5,085.77 is: 7,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.75 : 28,688.58 = 5,085.77 : x
  2. Step 2: Convert to fraction form
    19,125.75/28,688.58 = 5,085.77/x
  3. Step 3: Cross multiply
    19,125.75x = 28,688.58 × 5,085.77
  4. Step 4: Simplify right side
    19,125.75x = 145,903,637.01
  5. Step 5: Solve for x
    x = 145,903,637.01/19,125.75
  6. Step 6: Final answer
    x = 7,628.65

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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.