Home / 13,712.08-20,577.36-5,921.68

Finding the Fourth Proportional to 13,712.08, 20,577.36 and 5,921.68

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Solution

The fourth proportional to 13,712.08, 20,577.36 and 5,921.68 is: 8,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.08 : 20,577.36 = 5,921.68 : x
  2. Step 2: Convert to fraction form
    13,712.08/20,577.36 = 5,921.68/x
  3. Step 3: Cross multiply
    13,712.08x = 20,577.36 × 5,921.68
  4. Step 4: Simplify right side
    13,712.08x = 121,852,541.16
  5. Step 5: Solve for x
    x = 121,852,541.16/13,712.08
  6. Step 6: Final answer
    x = 8,886.51

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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.