Home / 13,325.95-18,390.53-7,357.60

Finding the Fourth Proportional to 13,325.95, 18,390.53 and 7,357.60

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Solution

The fourth proportional to 13,325.95, 18,390.53 and 7,357.60 is: 10,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.95 : 18,390.53 = 7,357.60 : x
  2. Step 2: Convert to fraction form
    13,325.95/18,390.53 = 7,357.60/x
  3. Step 3: Cross multiply
    13,325.95x = 18,390.53 × 7,357.60
  4. Step 4: Simplify right side
    13,325.95x = 135,310,034.79
  5. Step 5: Solve for x
    x = 135,310,034.79/13,325.95
  6. Step 6: Final answer
    x = 10,153.88

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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.