Home / 8,421.09-11,617.35-5,061.93

Finding the Fourth Proportional to 8,421.09, 11,617.35 and 5,061.93

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Solution

The fourth proportional to 8,421.09, 11,617.35 and 5,061.93 is: 6,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.09 : 11,617.35 = 5,061.93 : x
  2. Step 2: Convert to fraction form
    8,421.09/11,617.35 = 5,061.93/x
  3. Step 3: Cross multiply
    8,421.09x = 11,617.35 × 5,061.93
  4. Step 4: Simplify right side
    8,421.09x = 58,806,212.49
  5. Step 5: Solve for x
    x = 58,806,212.49/8,421.09
  6. Step 6: Final answer
    x = 6,983.21

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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.