Home / 13,888.36-19,165.98-7,600.78

Finding the Fourth Proportional to 13,888.36, 19,165.98 and 7,600.78

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Solution

The fourth proportional to 13,888.36, 19,165.98 and 7,600.78 is: 10,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.36 : 19,165.98 = 7,600.78 : x
  2. Step 2: Convert to fraction form
    13,888.36/19,165.98 = 7,600.78/x
  3. Step 3: Cross multiply
    13,888.36x = 19,165.98 × 7,600.78
  4. Step 4: Simplify right side
    13,888.36x = 145,676,397.46
  5. Step 5: Solve for x
    x = 145,676,397.46/13,888.36
  6. Step 6: Final answer
    x = 10,489.10

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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.