Home / 8,210.09-12,287.12-6,895.19

Finding the Fourth Proportional to 8,210.09, 12,287.12 and 6,895.19

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Solution

The fourth proportional to 8,210.09, 12,287.12 and 6,895.19 is: 10,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.09 : 12,287.12 = 6,895.19 : x
  2. Step 2: Convert to fraction form
    8,210.09/12,287.12 = 6,895.19/x
  3. Step 3: Cross multiply
    8,210.09x = 12,287.12 × 6,895.19
  4. Step 4: Simplify right side
    8,210.09x = 84,721,931.04
  5. Step 5: Solve for x
    x = 84,721,931.04/8,210.09
  6. Step 6: Final answer
    x = 10,319.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.