Home / 15,316.63-21,136.55-8,601.93

Finding the Fourth Proportional to 15,316.63, 21,136.55 and 8,601.93

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Solution

The fourth proportional to 15,316.63, 21,136.55 and 8,601.93 is: 11,870.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.63 : 21,136.55 = 8,601.93 : x
  2. Step 2: Convert to fraction form
    15,316.63/21,136.55 = 8,601.93/x
  3. Step 3: Cross multiply
    15,316.63x = 21,136.55 × 8,601.93
  4. Step 4: Simplify right side
    15,316.63x = 181,815,080.53
  5. Step 5: Solve for x
    x = 181,815,080.53/15,316.63
  6. Step 6: Final answer
    x = 11,870.44

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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.