Home / 15,316.02-21,136.21-8,601.73

Finding the Fourth Proportional to 15,316.02, 21,136.21 and 8,601.73

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Solution

The fourth proportional to 15,316.02, 21,136.21 and 8,601.73 is: 11,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.02 : 21,136.21 = 8,601.73 : x
  2. Step 2: Convert to fraction form
    15,316.02/21,136.21 = 8,601.73/x
  3. Step 3: Cross multiply
    15,316.02x = 21,136.21 × 8,601.73
  4. Step 4: Simplify right side
    15,316.02x = 181,807,897.30
  5. Step 5: Solve for x
    x = 181,807,897.30/15,316.02
  6. Step 6: Final answer
    x = 11,870.44

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Double scale
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Similar ratio
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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.