Home / 15,675.76-21,632.48-8,602.30

Finding the Fourth Proportional to 15,675.76, 21,632.48 and 8,602.30

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Solution

The fourth proportional to 15,675.76, 21,632.48 and 8,602.30 is: 11,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.76 : 21,632.48 = 8,602.30 : x
  2. Step 2: Convert to fraction form
    15,675.76/21,632.48 = 8,602.30/x
  3. Step 3: Cross multiply
    15,675.76x = 21,632.48 × 8,602.30
  4. Step 4: Simplify right side
    15,675.76x = 186,088,974.54
  5. Step 5: Solve for x
    x = 186,088,974.54/15,675.76
  6. Step 6: Final answer
    x = 11,871.13

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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.