Home / 26,259.16-39,368.68-13,120.74

Finding the Fourth Proportional to 26,259.16, 39,368.68 and 13,120.74

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Solution

The fourth proportional to 26,259.16, 39,368.68 and 13,120.74 is: 19,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,259.16 : 39,368.68 = 13,120.74 : x
  2. Step 2: Convert to fraction form
    26,259.16/39,368.68 = 13,120.74/x
  3. Step 3: Cross multiply
    26,259.16x = 39,368.68 × 13,120.74
  4. Step 4: Simplify right side
    26,259.16x = 516,546,214.42
  5. Step 5: Solve for x
    x = 516,546,214.42/26,259.16
  6. Step 6: Final answer
    x = 19,671.09

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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.