Home / 13,139.68-18,124.88-9,598.56

Finding the Fourth Proportional to 13,139.68, 18,124.88 and 9,598.56

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Solution

The fourth proportional to 13,139.68, 18,124.88 and 9,598.56 is: 13,240.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.68 : 18,124.88 = 9,598.56 : x
  2. Step 2: Convert to fraction form
    13,139.68/18,124.88 = 9,598.56/x
  3. Step 3: Cross multiply
    13,139.68x = 18,124.88 × 9,598.56
  4. Step 4: Simplify right side
    13,139.68x = 173,972,748.17
  5. Step 5: Solve for x
    x = 173,972,748.17/13,139.68
  6. Step 6: Final answer
    x = 13,240.26

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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.