Home / 13,118.59-19,680.05-6,544.99

Finding the Fourth Proportional to 13,118.59, 19,680.05 and 6,544.99

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Solution

The fourth proportional to 13,118.59, 19,680.05 and 6,544.99 is: 9,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.59 : 19,680.05 = 6,544.99 : x
  2. Step 2: Convert to fraction form
    13,118.59/19,680.05 = 6,544.99/x
  3. Step 3: Cross multiply
    13,118.59x = 19,680.05 × 6,544.99
  4. Step 4: Simplify right side
    13,118.59x = 128,805,730.45
  5. Step 5: Solve for x
    x = 128,805,730.45/13,118.59
  6. Step 6: Final answer
    x = 9,818.57

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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.