Home / 13,485.24-18,610.02-7,517.70

Finding the Fourth Proportional to 13,485.24, 18,610.02 and 7,517.70

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Solution

The fourth proportional to 13,485.24, 18,610.02 and 7,517.70 is: 10,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.24 : 18,610.02 = 7,517.70 : x
  2. Step 2: Convert to fraction form
    13,485.24/18,610.02 = 7,517.70/x
  3. Step 3: Cross multiply
    13,485.24x = 18,610.02 × 7,517.70
  4. Step 4: Simplify right side
    13,485.24x = 139,904,547.35
  5. Step 5: Solve for x
    x = 139,904,547.35/13,485.24
  6. Step 6: Final answer
    x = 10,374.64

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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.