Home / 15,678.81-23,515.47-6,188.58

Finding the Fourth Proportional to 15,678.81, 23,515.47 and 6,188.58

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Solution

The fourth proportional to 15,678.81, 23,515.47 and 6,188.58 is: 9,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.81 : 23,515.47 = 6,188.58 : x
  2. Step 2: Convert to fraction form
    15,678.81/23,515.47 = 6,188.58/x
  3. Step 3: Cross multiply
    15,678.81x = 23,515.47 × 6,188.58
  4. Step 4: Simplify right side
    15,678.81x = 145,527,367.33
  5. Step 5: Solve for x
    x = 145,527,367.33/15,678.81
  6. Step 6: Final answer
    x = 9,281.79

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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.