Home / 6,913.10-10,366.53-1,981.61

Finding the Fourth Proportional to 6,913.10, 10,366.53 and 1,981.61

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Solution

The fourth proportional to 6,913.10, 10,366.53 and 1,981.61 is: 2,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.10 : 10,366.53 = 1,981.61 : x
  2. Step 2: Convert to fraction form
    6,913.10/10,366.53 = 1,981.61/x
  3. Step 3: Cross multiply
    6,913.10x = 10,366.53 × 1,981.61
  4. Step 4: Simplify right side
    6,913.10x = 20,542,419.51
  5. Step 5: Solve for x
    x = 20,542,419.51/6,913.10
  6. Step 6: Final answer
    x = 2,971.52

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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.