Home / 10,515.51-14,510.75-5,799.78

Finding the Fourth Proportional to 10,515.51, 14,510.75 and 5,799.78

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Solution

The fourth proportional to 10,515.51, 14,510.75 and 5,799.78 is: 8,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.51 : 14,510.75 = 5,799.78 : x
  2. Step 2: Convert to fraction form
    10,515.51/14,510.75 = 5,799.78/x
  3. Step 3: Cross multiply
    10,515.51x = 14,510.75 × 5,799.78
  4. Step 4: Simplify right side
    10,515.51x = 84,159,128.64
  5. Step 5: Solve for x
    x = 84,159,128.64/10,515.51
  6. Step 6: Final answer
    x = 8,003.33

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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.