Home / 15,549.20-21,457.94-8,834.84

Finding the Fourth Proportional to 15,549.20, 21,457.94 and 8,834.84

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Solution

The fourth proportional to 15,549.20, 21,457.94 and 8,834.84 is: 12,192.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.20 : 21,457.94 = 8,834.84 : x
  2. Step 2: Convert to fraction form
    15,549.20/21,457.94 = 8,834.84/x
  3. Step 3: Cross multiply
    15,549.20x = 21,457.94 × 8,834.84
  4. Step 4: Simplify right side
    15,549.20x = 189,577,315.17
  5. Step 5: Solve for x
    x = 189,577,315.17/15,549.20
  6. Step 6: Final answer
    x = 12,192.10

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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.