Home / 13,127.64-18,118.42-12,537.16

Finding the Fourth Proportional to 13,127.64, 18,118.42 and 12,537.16

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Solution

The fourth proportional to 13,127.64, 18,118.42 and 12,537.16 is: 17,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.64 : 18,118.42 = 12,537.16 : x
  2. Step 2: Convert to fraction form
    13,127.64/18,118.42 = 12,537.16/x
  3. Step 3: Cross multiply
    13,127.64x = 18,118.42 × 12,537.16
  4. Step 4: Simplify right side
    13,127.64x = 227,153,530.49
  5. Step 5: Solve for x
    x = 227,153,530.49/13,127.64
  6. Step 6: Final answer
    x = 17,303.46

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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.