Home / 10,306.16-14,209.94-8,709.92

Finding the Fourth Proportional to 10,306.16, 14,209.94 and 8,709.92

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Solution

The fourth proportional to 10,306.16, 14,209.94 and 8,709.92 is: 12,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.16 : 14,209.94 = 8,709.92 : x
  2. Step 2: Convert to fraction form
    10,306.16/14,209.94 = 8,709.92/x
  3. Step 3: Cross multiply
    10,306.16x = 14,209.94 × 8,709.92
  4. Step 4: Simplify right side
    10,306.16x = 123,767,440.60
  5. Step 5: Solve for x
    x = 123,767,440.60/10,306.16
  6. Step 6: Final answer
    x = 12,009.07

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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.