Home / 10,618.63-15,838.35-9,220.97

Finding the Fourth Proportional to 10,618.63, 15,838.35 and 9,220.97

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Solution

The fourth proportional to 10,618.63, 15,838.35 and 9,220.97 is: 13,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.63 : 15,838.35 = 9,220.97 : x
  2. Step 2: Convert to fraction form
    10,618.63/15,838.35 = 9,220.97/x
  3. Step 3: Cross multiply
    10,618.63x = 15,838.35 × 9,220.97
  4. Step 4: Simplify right side
    10,618.63x = 146,044,950.20
  5. Step 5: Solve for x
    x = 146,044,950.20/10,618.63
  6. Step 6: Final answer
    x = 13,753.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.