Home / 13,730.04-18,947.46-7,442.46

Finding the Fourth Proportional to 13,730.04, 18,947.46 and 7,442.46

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Solution

The fourth proportional to 13,730.04, 18,947.46 and 7,442.46 is: 10,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.04 : 18,947.46 = 7,442.46 : x
  2. Step 2: Convert to fraction form
    13,730.04/18,947.46 = 7,442.46/x
  3. Step 3: Cross multiply
    13,730.04x = 18,947.46 × 7,442.46
  4. Step 4: Simplify right side
    13,730.04x = 141,015,713.15
  5. Step 5: Solve for x
    x = 141,015,713.15/13,730.04
  6. Step 6: Final answer
    x = 10,270.60

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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.