Home / 10,628.28-15,931.53-4,788.99

Finding the Fourth Proportional to 10,628.28, 15,931.53 and 4,788.99

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Solution

The fourth proportional to 10,628.28, 15,931.53 and 4,788.99 is: 7,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.28 : 15,931.53 = 4,788.99 : x
  2. Step 2: Convert to fraction form
    10,628.28/15,931.53 = 4,788.99/x
  3. Step 3: Cross multiply
    10,628.28x = 15,931.53 × 4,788.99
  4. Step 4: Simplify right side
    10,628.28x = 76,295,937.85
  5. Step 5: Solve for x
    x = 76,295,937.85/10,628.28
  6. Step 6: Final answer
    x = 7,178.58

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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.