Home / 8,918.08-13,397.63-6,291.63

Finding the Fourth Proportional to 8,918.08, 13,397.63 and 6,291.63

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Solution

The fourth proportional to 8,918.08, 13,397.63 and 6,291.63 is: 9,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.08 : 13,397.63 = 6,291.63 : x
  2. Step 2: Convert to fraction form
    8,918.08/13,397.63 = 6,291.63/x
  3. Step 3: Cross multiply
    8,918.08x = 13,397.63 × 6,291.63
  4. Step 4: Simplify right side
    8,918.08x = 84,292,899.38
  5. Step 5: Solve for x
    x = 84,292,899.38/8,918.08
  6. Step 6: Final answer
    x = 9,451.91

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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.