Home / 13,730.78-18,948.92-7,598.55

Finding the Fourth Proportional to 13,730.78, 18,948.92 and 7,598.55

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Solution

The fourth proportional to 13,730.78, 18,948.92 and 7,598.55 is: 10,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.78 : 18,948.92 = 7,598.55 : x
  2. Step 2: Convert to fraction form
    13,730.78/18,948.92 = 7,598.55/x
  3. Step 3: Cross multiply
    13,730.78x = 18,948.92 × 7,598.55
  4. Step 4: Simplify right side
    13,730.78x = 143,984,207.01
  5. Step 5: Solve for x
    x = 143,984,207.01/13,730.78
  6. Step 6: Final answer
    x = 10,486.24

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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.