Home / 13,140.55-19,699.10-4,818.62

Finding the Fourth Proportional to 13,140.55, 19,699.10 and 4,818.62

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Solution

The fourth proportional to 13,140.55, 19,699.10 and 4,818.62 is: 7,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.55 : 19,699.10 = 4,818.62 : x
  2. Step 2: Convert to fraction form
    13,140.55/19,699.10 = 4,818.62/x
  3. Step 3: Cross multiply
    13,140.55x = 19,699.10 × 4,818.62
  4. Step 4: Simplify right side
    13,140.55x = 94,922,547.57
  5. Step 5: Solve for x
    x = 94,922,547.57/13,140.55
  6. Step 6: Final answer
    x = 7,223.64

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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.