Home / 13,899.13-19,184.18-8,590.75

Finding the Fourth Proportional to 13,899.13, 19,184.18 and 8,590.75

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Solution

The fourth proportional to 13,899.13, 19,184.18 and 8,590.75 is: 11,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.13 : 19,184.18 = 8,590.75 : x
  2. Step 2: Convert to fraction form
    13,899.13/19,184.18 = 8,590.75/x
  3. Step 3: Cross multiply
    13,899.13x = 19,184.18 × 8,590.75
  4. Step 4: Simplify right side
    13,899.13x = 164,806,494.34
  5. Step 5: Solve for x
    x = 164,806,494.34/13,899.13
  6. Step 6: Final answer
    x = 11,857.32

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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.