Home / 13,586.68-18,750.09-7,925.05

Finding the Fourth Proportional to 13,586.68, 18,750.09 and 7,925.05

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Solution

The fourth proportional to 13,586.68, 18,750.09 and 7,925.05 is: 10,936.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.68 : 18,750.09 = 7,925.05 : x
  2. Step 2: Convert to fraction form
    13,586.68/18,750.09 = 7,925.05/x
  3. Step 3: Cross multiply
    13,586.68x = 18,750.09 × 7,925.05
  4. Step 4: Simplify right side
    13,586.68x = 148,595,400.75
  5. Step 5: Solve for x
    x = 148,595,400.75/13,586.68
  6. Step 6: Final answer
    x = 10,936.84

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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.