Home / 15,457.50-21,332.39-8,743.12

Finding the Fourth Proportional to 15,457.50, 21,332.39 and 8,743.12

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Solution

The fourth proportional to 15,457.50, 21,332.39 and 8,743.12 is: 12,066.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,457.50 : 21,332.39 = 8,743.12 : x
  2. Step 2: Convert to fraction form
    15,457.50/21,332.39 = 8,743.12/x
  3. Step 3: Cross multiply
    15,457.50x = 21,332.39 × 8,743.12
  4. Step 4: Simplify right side
    15,457.50x = 186,511,548.61
  5. Step 5: Solve for x
    x = 186,511,548.61/15,457.50
  6. Step 6: Final answer
    x = 12,066.09

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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.