Home / 19,857.60-27,403.47-11,474.10

Finding the Fourth Proportional to 19,857.60, 27,403.47 and 11,474.10

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Solution

The fourth proportional to 19,857.60, 27,403.47 and 11,474.10 is: 15,834.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.60 : 27,403.47 = 11,474.10 : x
  2. Step 2: Convert to fraction form
    19,857.60/27,403.47 = 11,474.10/x
  3. Step 3: Cross multiply
    19,857.60x = 27,403.47 × 11,474.10
  4. Step 4: Simplify right side
    19,857.60x = 314,430,155.13
  5. Step 5: Solve for x
    x = 314,430,155.13/19,857.60
  6. Step 6: Final answer
    x = 15,834.25

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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.