Home / 17,388.18-26,081.81-4,909.07

Finding the Fourth Proportional to 17,388.18, 26,081.81 and 4,909.07

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Solution

The fourth proportional to 17,388.18, 26,081.81 and 4,909.07 is: 7,363.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.18 : 26,081.81 = 4,909.07 : x
  2. Step 2: Convert to fraction form
    17,388.18/26,081.81 = 4,909.07/x
  3. Step 3: Cross multiply
    17,388.18x = 26,081.81 × 4,909.07
  4. Step 4: Simplify right side
    17,388.18x = 128,037,276.06
  5. Step 5: Solve for x
    x = 128,037,276.06/17,388.18
  6. Step 6: Final answer
    x = 7,363.47

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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.