Home / 7,911.03-10,913.49-5,225.07

Finding the Fourth Proportional to 7,911.03, 10,913.49 and 5,225.07

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Solution

The fourth proportional to 7,911.03, 10,913.49 and 5,225.07 is: 7,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.03 : 10,913.49 = 5,225.07 : x
  2. Step 2: Convert to fraction form
    7,911.03/10,913.49 = 5,225.07/x
  3. Step 3: Cross multiply
    7,911.03x = 10,913.49 × 5,225.07
  4. Step 4: Simplify right side
    7,911.03x = 57,023,749.19
  5. Step 5: Solve for x
    x = 57,023,749.19/7,911.03
  6. Step 6: Final answer
    x = 7,208.13

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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.