Home / 13,289.02-18,338.88-7,320.94

Finding the Fourth Proportional to 13,289.02, 18,338.88 and 7,320.94

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Solution

The fourth proportional to 13,289.02, 18,338.88 and 7,320.94 is: 10,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.02 : 18,338.88 = 7,320.94 : x
  2. Step 2: Convert to fraction form
    13,289.02/18,338.88 = 7,320.94/x
  3. Step 3: Cross multiply
    13,289.02x = 18,338.88 × 7,320.94
  4. Step 4: Simplify right side
    13,289.02x = 134,257,840.15
  5. Step 5: Solve for x
    x = 134,257,840.15/13,289.02
  6. Step 6: Final answer
    x = 10,102.92

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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.