Home / 13,406.02-18,499.68-7,437.58

Finding the Fourth Proportional to 13,406.02, 18,499.68 and 7,437.58

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Solution

The fourth proportional to 13,406.02, 18,499.68 and 7,437.58 is: 10,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.02 : 18,499.68 = 7,437.58 : x
  2. Step 2: Convert to fraction form
    13,406.02/18,499.68 = 7,437.58/x
  3. Step 3: Cross multiply
    13,406.02x = 18,499.68 × 7,437.58
  4. Step 4: Simplify right side
    13,406.02x = 137,592,849.97
  5. Step 5: Solve for x
    x = 137,592,849.97/13,406.02
  6. Step 6: Final answer
    x = 10,263.51

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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.