Home / 8,713.12-12,021.45-4,935.68

Finding the Fourth Proportional to 8,713.12, 12,021.45 and 4,935.68

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Solution

The fourth proportional to 8,713.12, 12,021.45 and 4,935.68 is: 6,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.12 : 12,021.45 = 4,935.68 : x
  2. Step 2: Convert to fraction form
    8,713.12/12,021.45 = 4,935.68/x
  3. Step 3: Cross multiply
    8,713.12x = 12,021.45 × 4,935.68
  4. Step 4: Simplify right side
    8,713.12x = 59,334,030.34
  5. Step 5: Solve for x
    x = 59,334,030.34/8,713.12
  6. Step 6: Final answer
    x = 6,809.74

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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.