Home / 11,513.08-17,281.48-7,140.92

Finding the Fourth Proportional to 11,513.08, 17,281.48 and 7,140.92

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Solution

The fourth proportional to 11,513.08, 17,281.48 and 7,140.92 is: 10,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.08 : 17,281.48 = 7,140.92 : x
  2. Step 2: Convert to fraction form
    11,513.08/17,281.48 = 7,140.92/x
  3. Step 3: Cross multiply
    11,513.08x = 17,281.48 × 7,140.92
  4. Step 4: Simplify right side
    11,513.08x = 123,405,666.16
  5. Step 5: Solve for x
    x = 123,405,666.16/11,513.08
  6. Step 6: Final answer
    x = 10,718.74

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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.