Home / 13,875.78-19,149.04-7,588.16

Finding the Fourth Proportional to 13,875.78, 19,149.04 and 7,588.16

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Solution

The fourth proportional to 13,875.78, 19,149.04 and 7,588.16 is: 10,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.78 : 19,149.04 = 7,588.16 : x
  2. Step 2: Convert to fraction form
    13,875.78/19,149.04 = 7,588.16/x
  3. Step 3: Cross multiply
    13,875.78x = 19,149.04 × 7,588.16
  4. Step 4: Simplify right side
    13,875.78x = 145,305,979.37
  5. Step 5: Solve for x
    x = 145,305,979.37/13,875.78
  6. Step 6: Final answer
    x = 10,471.91

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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.