Home / 10,615.14-15,925.59-3,219.84

Finding the Fourth Proportional to 10,615.14, 15,925.59 and 3,219.84

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Solution

The fourth proportional to 10,615.14, 15,925.59 and 3,219.84 is: 4,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.14 : 15,925.59 = 3,219.84 : x
  2. Step 2: Convert to fraction form
    10,615.14/15,925.59 = 3,219.84/x
  3. Step 3: Cross multiply
    10,615.14x = 15,925.59 × 3,219.84
  4. Step 4: Simplify right side
    10,615.14x = 51,277,851.71
  5. Step 5: Solve for x
    x = 51,277,851.71/10,615.14
  6. Step 6: Final answer
    x = 4,830.63

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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.