Home / 7,911.53-10,913.14-5,222.76

Finding the Fourth Proportional to 7,911.53, 10,913.14 and 5,222.76

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Solution

The fourth proportional to 7,911.53, 10,913.14 and 5,222.76 is: 7,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.53 : 10,913.14 = 5,222.76 : x
  2. Step 2: Convert to fraction form
    7,911.53/10,913.14 = 5,222.76/x
  3. Step 3: Cross multiply
    7,911.53x = 10,913.14 × 5,222.76
  4. Step 4: Simplify right side
    7,911.53x = 56,996,711.07
  5. Step 5: Solve for x
    x = 56,996,711.07/7,911.53
  6. Step 6: Final answer
    x = 7,204.26

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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.