Home / 13,451.16-18,561.76-7,482.68

Finding the Fourth Proportional to 13,451.16, 18,561.76 and 7,482.68

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Solution

The fourth proportional to 13,451.16, 18,561.76 and 7,482.68 is: 10,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.16 : 18,561.76 = 7,482.68 : x
  2. Step 2: Convert to fraction form
    13,451.16/18,561.76 = 7,482.68/x
  3. Step 3: Cross multiply
    13,451.16x = 18,561.76 × 7,482.68
  4. Step 4: Simplify right side
    13,451.16x = 138,891,668.41
  5. Step 5: Solve for x
    x = 138,891,668.41/13,451.16
  6. Step 6: Final answer
    x = 10,325.62

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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.