Home / 13,405.18-18,499.26-7,437.24

Finding the Fourth Proportional to 13,405.18, 18,499.26 and 7,437.24

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Solution

The fourth proportional to 13,405.18, 18,499.26 and 7,437.24 is: 10,263.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.18 : 18,499.26 = 7,437.24 : x
  2. Step 2: Convert to fraction form
    13,405.18/18,499.26 = 7,437.24/x
  3. Step 3: Cross multiply
    13,405.18x = 18,499.26 × 7,437.24
  4. Step 4: Simplify right side
    13,405.18x = 137,583,436.44
  5. Step 5: Solve for x
    x = 137,583,436.44/13,405.18
  6. Step 6: Final answer
    x = 10,263.45

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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.