Home / 13,506.49-18,637.11-7,537.40

Finding the Fourth Proportional to 13,506.49, 18,637.11 and 7,537.40

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Solution

The fourth proportional to 13,506.49, 18,637.11 and 7,537.40 is: 10,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.49 : 18,637.11 = 7,537.40 : x
  2. Step 2: Convert to fraction form
    13,506.49/18,637.11 = 7,537.40/x
  3. Step 3: Cross multiply
    13,506.49x = 18,637.11 × 7,537.40
  4. Step 4: Simplify right side
    13,506.49x = 140,475,259.73
  5. Step 5: Solve for x
    x = 140,475,259.73/13,506.49
  6. Step 6: Final answer
    x = 10,400.58

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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.