Home / 10,486.08-15,729.12-3,561.12

Finding the Fourth Proportional to 10,486.08, 15,729.12 and 3,561.12

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Solution

The fourth proportional to 10,486.08, 15,729.12 and 3,561.12 is: 5,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.08 : 15,729.12 = 3,561.12 : x
  2. Step 2: Convert to fraction form
    10,486.08/15,729.12 = 3,561.12/x
  3. Step 3: Cross multiply
    10,486.08x = 15,729.12 × 3,561.12
  4. Step 4: Simplify right side
    10,486.08x = 56,013,283.81
  5. Step 5: Solve for x
    x = 56,013,283.81/10,486.08
  6. Step 6: Final answer
    x = 5,341.68

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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.