Home / 9,911.35-13,677.77-5,434.99

Finding the Fourth Proportional to 9,911.35, 13,677.77 and 5,434.99

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Solution

The fourth proportional to 9,911.35, 13,677.77 and 5,434.99 is: 7,500.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.35 : 13,677.77 = 5,434.99 : x
  2. Step 2: Convert to fraction form
    9,911.35/13,677.77 = 5,434.99/x
  3. Step 3: Cross multiply
    9,911.35x = 13,677.77 × 5,434.99
  4. Step 4: Simplify right side
    9,911.35x = 74,338,543.17
  5. Step 5: Solve for x
    x = 74,338,543.17/9,911.35
  6. Step 6: Final answer
    x = 7,500.34

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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.