Home / 13,707.68-20,555.03-6,309.95

Finding the Fourth Proportional to 13,707.68, 20,555.03 and 6,309.95

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Solution

The fourth proportional to 13,707.68, 20,555.03 and 6,309.95 is: 9,461.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.68 : 20,555.03 = 6,309.95 : x
  2. Step 2: Convert to fraction form
    13,707.68/20,555.03 = 6,309.95/x
  3. Step 3: Cross multiply
    13,707.68x = 20,555.03 × 6,309.95
  4. Step 4: Simplify right side
    13,707.68x = 129,701,278.71
  5. Step 5: Solve for x
    x = 129,701,278.71/13,707.68
  6. Step 6: Final answer
    x = 9,461.94

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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.