Home / 15,913.80-21,962.34-9,200.52

Finding the Fourth Proportional to 15,913.80, 21,962.34 and 9,200.52

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Solution

The fourth proportional to 15,913.80, 21,962.34 and 9,200.52 is: 12,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.80 : 21,962.34 = 9,200.52 : x
  2. Step 2: Convert to fraction form
    15,913.80/21,962.34 = 9,200.52/x
  3. Step 3: Cross multiply
    15,913.80x = 21,962.34 × 9,200.52
  4. Step 4: Simplify right side
    15,913.80x = 202,064,948.42
  5. Step 5: Solve for x
    x = 202,064,948.42/15,913.80
  6. Step 6: Final answer
    x = 12,697.47

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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.