Home / 15,407.09-23,105.16-5,543.72

Finding the Fourth Proportional to 15,407.09, 23,105.16 and 5,543.72

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Solution

The fourth proportional to 15,407.09, 23,105.16 and 5,543.72 is: 8,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.09 : 23,105.16 = 5,543.72 : x
  2. Step 2: Convert to fraction form
    15,407.09/23,105.16 = 5,543.72/x
  3. Step 3: Cross multiply
    15,407.09x = 23,105.16 × 5,543.72
  4. Step 4: Simplify right side
    15,407.09x = 128,088,422.07
  5. Step 5: Solve for x
    x = 128,088,422.07/15,407.09
  6. Step 6: Final answer
    x = 8,313.61

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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.