Home / 13,437.55-20,159.26-5,117.60

Finding the Fourth Proportional to 13,437.55, 20,159.26 and 5,117.60

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Solution

The fourth proportional to 13,437.55, 20,159.26 and 5,117.60 is: 7,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.55 : 20,159.26 = 5,117.60 : x
  2. Step 2: Convert to fraction form
    13,437.55/20,159.26 = 5,117.60/x
  3. Step 3: Cross multiply
    13,437.55x = 20,159.26 × 5,117.60
  4. Step 4: Simplify right side
    13,437.55x = 103,166,981.97
  5. Step 5: Solve for x
    x = 103,166,981.97/13,437.55
  6. Step 6: Final answer
    x = 7,677.52

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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.