Home / 9,503.20-13,113.93-5,311.45

Finding the Fourth Proportional to 9,503.20, 13,113.93 and 5,311.45

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Solution

The fourth proportional to 9,503.20, 13,113.93 and 5,311.45 is: 7,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.20 : 13,113.93 = 5,311.45 : x
  2. Step 2: Convert to fraction form
    9,503.20/13,113.93 = 5,311.45/x
  3. Step 3: Cross multiply
    9,503.20x = 13,113.93 × 5,311.45
  4. Step 4: Simplify right side
    9,503.20x = 69,653,983.50
  5. Step 5: Solve for x
    x = 69,653,983.50/9,503.20
  6. Step 6: Final answer
    x = 7,329.53

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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.