Home / 15,136.68-22,718.40-8,122.64

Finding the Fourth Proportional to 15,136.68, 22,718.40 and 8,122.64

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Solution

The fourth proportional to 15,136.68, 22,718.40 and 8,122.64 is: 12,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.68 : 22,718.40 = 8,122.64 : x
  2. Step 2: Convert to fraction form
    15,136.68/22,718.40 = 8,122.64/x
  3. Step 3: Cross multiply
    15,136.68x = 22,718.40 × 8,122.64
  4. Step 4: Simplify right side
    15,136.68x = 184,533,384.58
  5. Step 5: Solve for x
    x = 184,533,384.58/15,136.68
  6. Step 6: Final answer
    x = 12,191.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.