Home / 13,133.12-18,130.38-10,142.24

Finding the Fourth Proportional to 13,133.12, 18,130.38 and 10,142.24

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Solution

The fourth proportional to 13,133.12, 18,130.38 and 10,142.24 is: 14,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.12 : 18,130.38 = 10,142.24 : x
  2. Step 2: Convert to fraction form
    13,133.12/18,130.38 = 10,142.24/x
  3. Step 3: Cross multiply
    13,133.12x = 18,130.38 × 10,142.24
  4. Step 4: Simplify right side
    13,133.12x = 183,882,665.25
  5. Step 5: Solve for x
    x = 183,882,665.25/13,133.12
  6. Step 6: Final answer
    x = 14,001.45

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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.