Home / 13,113.59-19,653.08-5,318.15

Finding the Fourth Proportional to 13,113.59, 19,653.08 and 5,318.15

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Solution

The fourth proportional to 13,113.59, 19,653.08 and 5,318.15 is: 7,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.59 : 19,653.08 = 5,318.15 : x
  2. Step 2: Convert to fraction form
    13,113.59/19,653.08 = 5,318.15/x
  3. Step 3: Cross multiply
    13,113.59x = 19,653.08 × 5,318.15
  4. Step 4: Simplify right side
    13,113.59x = 104,517,902.55
  5. Step 5: Solve for x
    x = 104,517,902.55/13,113.59
  6. Step 6: Final answer
    x = 7,970.20

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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.