Home / 15,862.84-23,776.20-5,330.40

Finding the Fourth Proportional to 15,862.84, 23,776.20 and 5,330.40

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Solution

The fourth proportional to 15,862.84, 23,776.20 and 5,330.40 is: 7,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862.84 : 23,776.20 = 5,330.40 : x
  2. Step 2: Convert to fraction form
    15,862.84/23,776.20 = 5,330.40/x
  3. Step 3: Cross multiply
    15,862.84x = 23,776.20 × 5,330.40
  4. Step 4: Simplify right side
    15,862.84x = 126,736,656.48
  5. Step 5: Solve for x
    x = 126,736,656.48/15,862.84
  6. Step 6: Final answer
    x = 7,989.53

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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.