Home / 13,013.12-17,953.62-7,347.16

Finding the Fourth Proportional to 13,013.12, 17,953.62 and 7,347.16

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Solution

The fourth proportional to 13,013.12, 17,953.62 and 7,347.16 is: 10,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.12 : 17,953.62 = 7,347.16 : x
  2. Step 2: Convert to fraction form
    13,013.12/17,953.62 = 7,347.16/x
  3. Step 3: Cross multiply
    13,013.12x = 17,953.62 × 7,347.16
  4. Step 4: Simplify right side
    13,013.12x = 131,908,118.72
  5. Step 5: Solve for x
    x = 131,908,118.72/13,013.12
  6. Step 6: Final answer
    x = 10,136.55

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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.