Home / 13,054.08-19,590.88-8,130.88

Finding the Fourth Proportional to 13,054.08, 19,590.88 and 8,130.88

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Solution

The fourth proportional to 13,054.08, 19,590.88 and 8,130.88 is: 12,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.08 : 19,590.88 = 8,130.88 : x
  2. Step 2: Convert to fraction form
    13,054.08/19,590.88 = 8,130.88/x
  3. Step 3: Cross multiply
    13,054.08x = 19,590.88 × 8,130.88
  4. Step 4: Simplify right side
    13,054.08x = 159,291,094.37
  5. Step 5: Solve for x
    x = 159,291,094.37/13,054.08
  6. Step 6: Final answer
    x = 12,202.40

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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.