Home / 13,253.42-18,290.61-8,769.47

Finding the Fourth Proportional to 13,253.42, 18,290.61 and 8,769.47

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Solution

The fourth proportional to 13,253.42, 18,290.61 and 8,769.47 is: 12,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.42 : 18,290.61 = 8,769.47 : x
  2. Step 2: Convert to fraction form
    13,253.42/18,290.61 = 8,769.47/x
  3. Step 3: Cross multiply
    13,253.42x = 18,290.61 × 8,769.47
  4. Step 4: Simplify right side
    13,253.42x = 160,398,864.22
  5. Step 5: Solve for x
    x = 160,398,864.22/13,253.42
  6. Step 6: Final answer
    x = 12,102.45

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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.