Home / 13,943.61-19,242.20-7,570.20

Finding the Fourth Proportional to 13,943.61, 19,242.20 and 7,570.20

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Solution

The fourth proportional to 13,943.61, 19,242.20 and 7,570.20 is: 10,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.61 : 19,242.20 = 7,570.20 : x
  2. Step 2: Convert to fraction form
    13,943.61/19,242.20 = 7,570.20/x
  3. Step 3: Cross multiply
    13,943.61x = 19,242.20 × 7,570.20
  4. Step 4: Simplify right side
    13,943.61x = 145,667,321.37
  5. Step 5: Solve for x
    x = 145,667,321.37/13,943.61
  6. Step 6: Final answer
    x = 10,446.89

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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.