Home / 12,457.08-17,192.16-9,307.80

Finding the Fourth Proportional to 12,457.08, 17,192.16 and 9,307.80

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Solution

The fourth proportional to 12,457.08, 17,192.16 and 9,307.80 is: 12,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.08 : 17,192.16 = 9,307.80 : x
  2. Step 2: Convert to fraction form
    12,457.08/17,192.16 = 9,307.80/x
  3. Step 3: Cross multiply
    12,457.08x = 17,192.16 × 9,307.80
  4. Step 4: Simplify right side
    12,457.08x = 160,021,186.85
  5. Step 5: Solve for x
    x = 160,021,186.85/12,457.08
  6. Step 6: Final answer
    x = 12,845.80

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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.