Home / 14,742.81-20,345.51-8,369.28

Finding the Fourth Proportional to 14,742.81, 20,345.51 and 8,369.28

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Solution

The fourth proportional to 14,742.81, 20,345.51 and 8,369.28 is: 11,549.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.81 : 20,345.51 = 8,369.28 : x
  2. Step 2: Convert to fraction form
    14,742.81/20,345.51 = 8,369.28/x
  3. Step 3: Cross multiply
    14,742.81x = 20,345.51 × 8,369.28
  4. Step 4: Simplify right side
    14,742.81x = 170,277,269.93
  5. Step 5: Solve for x
    x = 170,277,269.93/14,742.81
  6. Step 6: Final answer
    x = 11,549.85

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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.