Home / 15,316.03-21,135.99-8,601.76

Finding the Fourth Proportional to 15,316.03, 21,135.99 and 8,601.76

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Solution

The fourth proportional to 15,316.03, 21,135.99 and 8,601.76 is: 11,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.03 : 21,135.99 = 8,601.76 : x
  2. Step 2: Convert to fraction form
    15,316.03/21,135.99 = 8,601.76/x
  3. Step 3: Cross multiply
    15,316.03x = 21,135.99 × 8,601.76
  4. Step 4: Simplify right side
    15,316.03x = 181,806,713.34
  5. Step 5: Solve for x
    x = 181,806,713.34/15,316.03
  6. Step 6: Final answer
    x = 11,870.36

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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.