Home / 13,011.83-17,954.70-7,345.88

Finding the Fourth Proportional to 13,011.83, 17,954.70 and 7,345.88

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Solution

The fourth proportional to 13,011.83, 17,954.70 and 7,345.88 is: 10,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.83 : 17,954.70 = 7,345.88 : x
  2. Step 2: Convert to fraction form
    13,011.83/17,954.70 = 7,345.88/x
  3. Step 3: Cross multiply
    13,011.83x = 17,954.70 × 7,345.88
  4. Step 4: Simplify right side
    13,011.83x = 131,893,071.64
  5. Step 5: Solve for x
    x = 131,893,071.64/13,011.83
  6. Step 6: Final answer
    x = 10,136.40

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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.