Home / 13,875.24-19,142.08-10,090.12

Finding the Fourth Proportional to 13,875.24, 19,142.08 and 10,090.12

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Solution

The fourth proportional to 13,875.24, 19,142.08 and 10,090.12 is: 13,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.24 : 19,142.08 = 10,090.12 : x
  2. Step 2: Convert to fraction form
    13,875.24/19,142.08 = 10,090.12/x
  3. Step 3: Cross multiply
    13,875.24x = 19,142.08 × 10,090.12
  4. Step 4: Simplify right side
    13,875.24x = 193,145,884.25
  5. Step 5: Solve for x
    x = 193,145,884.25/13,875.24
  6. Step 6: Final answer
    x = 13,920.18

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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.