Home / 19,115.04-26,379.12-10,617.60

Finding the Fourth Proportional to 19,115.04, 26,379.12 and 10,617.60

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Solution

The fourth proportional to 19,115.04, 26,379.12 and 10,617.60 is: 14,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.04 : 26,379.12 = 10,617.60 : x
  2. Step 2: Convert to fraction form
    19,115.04/26,379.12 = 10,617.60/x
  3. Step 3: Cross multiply
    19,115.04x = 26,379.12 × 10,617.60
  4. Step 4: Simplify right side
    19,115.04x = 280,082,944.51
  5. Step 5: Solve for x
    x = 280,082,944.51/19,115.04
  6. Step 6: Final answer
    x = 14,652.49

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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.