Home / 12,407.49-18,607.29-4,085.64

Finding the Fourth Proportional to 12,407.49, 18,607.29 and 4,085.64

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Solution

The fourth proportional to 12,407.49, 18,607.29 and 4,085.64 is: 6,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.49 : 18,607.29 = 4,085.64 : x
  2. Step 2: Convert to fraction form
    12,407.49/18,607.29 = 4,085.64/x
  3. Step 3: Cross multiply
    12,407.49x = 18,607.29 × 4,085.64
  4. Step 4: Simplify right side
    12,407.49x = 76,022,688.32
  5. Step 5: Solve for x
    x = 76,022,688.32/12,407.49
  6. Step 6: Final answer
    x = 6,127.16

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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.