Home / 15,809.06-23,708.12-5,418.38

Finding the Fourth Proportional to 15,809.06, 23,708.12 and 5,418.38

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Solution

The fourth proportional to 15,809.06, 23,708.12 and 5,418.38 is: 8,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.06 : 23,708.12 = 5,418.38 : x
  2. Step 2: Convert to fraction form
    15,809.06/23,708.12 = 5,418.38/x
  3. Step 3: Cross multiply
    15,809.06x = 23,708.12 × 5,418.38
  4. Step 4: Simplify right side
    15,809.06x = 128,459,457.61
  5. Step 5: Solve for x
    x = 128,459,457.61/15,809.06
  6. Step 6: Final answer
    x = 8,125.69

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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.