Home / 10,117.44-13,988.16-7,767.36

Finding the Fourth Proportional to 10,117.44, 13,988.16 and 7,767.36

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Solution

The fourth proportional to 10,117.44, 13,988.16 and 7,767.36 is: 10,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.44 : 13,988.16 = 7,767.36 : x
  2. Step 2: Convert to fraction form
    10,117.44/13,988.16 = 7,767.36/x
  3. Step 3: Cross multiply
    10,117.44x = 13,988.16 × 7,767.36
  4. Step 4: Simplify right side
    10,117.44x = 108,651,074.46
  5. Step 5: Solve for x
    x = 108,651,074.46/10,117.44
  6. Step 6: Final answer
    x = 10,738.99

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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.