Home / 11,172.50-15,417.16-6,457.10

Finding the Fourth Proportional to 11,172.50, 15,417.16 and 6,457.10

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Solution

The fourth proportional to 11,172.50, 15,417.16 and 6,457.10 is: 8,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.50 : 15,417.16 = 6,457.10 : x
  2. Step 2: Convert to fraction form
    11,172.50/15,417.16 = 6,457.10/x
  3. Step 3: Cross multiply
    11,172.50x = 15,417.16 × 6,457.10
  4. Step 4: Simplify right side
    11,172.50x = 99,550,143.84
  5. Step 5: Solve for x
    x = 99,550,143.84/11,172.50
  6. Step 6: Final answer
    x = 8,910.28

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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.