Home / 19,859.10-27,405.54-11,475.60

Finding the Fourth Proportional to 19,859.10, 27,405.54 and 11,475.60

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Solution

The fourth proportional to 19,859.10, 27,405.54 and 11,475.60 is: 15,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.10 : 27,405.54 = 11,475.60 : x
  2. Step 2: Convert to fraction form
    19,859.10/27,405.54 = 11,475.60/x
  3. Step 3: Cross multiply
    19,859.10x = 27,405.54 × 11,475.60
  4. Step 4: Simplify right side
    19,859.10x = 314,495,014.82
  5. Step 5: Solve for x
    x = 314,495,014.82/19,859.10
  6. Step 6: Final answer
    x = 15,836.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.