Home / 13,943.99-19,242.57-7,570.45

Finding the Fourth Proportional to 13,943.99, 19,242.57 and 7,570.45

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Solution

The fourth proportional to 13,943.99, 19,242.57 and 7,570.45 is: 10,447.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.99 : 19,242.57 = 7,570.45 : x
  2. Step 2: Convert to fraction form
    13,943.99/19,242.57 = 7,570.45/x
  3. Step 3: Cross multiply
    13,943.99x = 19,242.57 × 7,570.45
  4. Step 4: Simplify right side
    13,943.99x = 145,674,817.84
  5. Step 5: Solve for x
    x = 145,674,817.84/13,943.99
  6. Step 6: Final answer
    x = 10,447.14

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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.