Home / 12,965.12-17,890.08-7,300.16

Finding the Fourth Proportional to 12,965.12, 17,890.08 and 7,300.16

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Solution

The fourth proportional to 12,965.12, 17,890.08 and 7,300.16 is: 10,073.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,965.12 : 17,890.08 = 7,300.16 : x
  2. Step 2: Convert to fraction form
    12,965.12/17,890.08 = 7,300.16/x
  3. Step 3: Cross multiply
    12,965.12x = 17,890.08 × 7,300.16
  4. Step 4: Simplify right side
    12,965.12x = 130,600,446.41
  5. Step 5: Solve for x
    x = 130,600,446.41/12,965.12
  6. Step 6: Final answer
    x = 10,073.22

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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.