Home / 12,529.16-17,290.77-6,864.40

Finding the Fourth Proportional to 12,529.16, 17,290.77 and 6,864.40

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Solution

The fourth proportional to 12,529.16, 17,290.77 and 6,864.40 is: 9,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.16 : 17,290.77 = 6,864.40 : x
  2. Step 2: Convert to fraction form
    12,529.16/17,290.77 = 6,864.40/x
  3. Step 3: Cross multiply
    12,529.16x = 17,290.77 × 6,864.40
  4. Step 4: Simplify right side
    12,529.16x = 118,690,806.09
  5. Step 5: Solve for x
    x = 118,690,806.09/12,529.16
  6. Step 6: Final answer
    x = 9,473.16

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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.