Home / 13,403.65-18,498.02-7,436.45

Finding the Fourth Proportional to 13,403.65, 18,498.02 and 7,436.45

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Solution

The fourth proportional to 13,403.65, 18,498.02 and 7,436.45 is: 10,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.65 : 18,498.02 = 7,436.45 : x
  2. Step 2: Convert to fraction form
    13,403.65/18,498.02 = 7,436.45/x
  3. Step 3: Cross multiply
    13,403.65x = 18,498.02 × 7,436.45
  4. Step 4: Simplify right side
    13,403.65x = 137,559,600.83
  5. Step 5: Solve for x
    x = 137,559,600.83/13,403.65
  6. Step 6: Final answer
    x = 10,262.85

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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.