Home / 13,612.95-20,416.19-5,292.63

Finding the Fourth Proportional to 13,612.95, 20,416.19 and 5,292.63

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Solution

The fourth proportional to 13,612.95, 20,416.19 and 5,292.63 is: 7,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.95 : 20,416.19 = 5,292.63 : x
  2. Step 2: Convert to fraction form
    13,612.95/20,416.19 = 5,292.63/x
  3. Step 3: Cross multiply
    13,612.95x = 20,416.19 × 5,292.63
  4. Step 4: Simplify right side
    13,612.95x = 108,055,313.22
  5. Step 5: Solve for x
    x = 108,055,313.22/13,612.95
  6. Step 6: Final answer
    x = 7,937.69

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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.