Home / 13,613.54-20,376.55-7,030.74

Finding the Fourth Proportional to 13,613.54, 20,376.55 and 7,030.74

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Solution

The fourth proportional to 13,613.54, 20,376.55 and 7,030.74 is: 10,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.54 : 20,376.55 = 7,030.74 : x
  2. Step 2: Convert to fraction form
    13,613.54/20,376.55 = 7,030.74/x
  3. Step 3: Cross multiply
    13,613.54x = 20,376.55 × 7,030.74
  4. Step 4: Simplify right side
    13,613.54x = 143,262,225.15
  5. Step 5: Solve for x
    x = 143,262,225.15/13,613.54
  6. Step 6: Final answer
    x = 10,523.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.