Home / 19,471.04-26,868.48-11,513.60

Finding the Fourth Proportional to 19,471.04, 26,868.48 and 11,513.60

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Solution

The fourth proportional to 19,471.04, 26,868.48 and 11,513.60 is: 15,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.04 : 26,868.48 = 11,513.60 : x
  2. Step 2: Convert to fraction form
    19,471.04/26,868.48 = 11,513.60/x
  3. Step 3: Cross multiply
    19,471.04x = 26,868.48 × 11,513.60
  4. Step 4: Simplify right side
    19,471.04x = 309,352,931.33
  5. Step 5: Solve for x
    x = 309,352,931.33/19,471.04
  6. Step 6: Final answer
    x = 15,887.85

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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.