Home / 10,521.82-15,782.73-8,802.46

Finding the Fourth Proportional to 10,521.82, 15,782.73 and 8,802.46

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Solution

The fourth proportional to 10,521.82, 15,782.73 and 8,802.46 is: 13,203.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.82 : 15,782.73 = 8,802.46 : x
  2. Step 2: Convert to fraction form
    10,521.82/15,782.73 = 8,802.46/x
  3. Step 3: Cross multiply
    10,521.82x = 15,782.73 × 8,802.46
  4. Step 4: Simplify right side
    10,521.82x = 138,926,849.52
  5. Step 5: Solve for x
    x = 138,926,849.52/10,521.82
  6. Step 6: Final answer
    x = 13,203.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.