Home / 13,195.02-18,208.35-7,225.50

Finding the Fourth Proportional to 13,195.02, 18,208.35 and 7,225.50

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Solution

The fourth proportional to 13,195.02, 18,208.35 and 7,225.50 is: 9,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.02 : 18,208.35 = 7,225.50 : x
  2. Step 2: Convert to fraction form
    13,195.02/18,208.35 = 7,225.50/x
  3. Step 3: Cross multiply
    13,195.02x = 18,208.35 × 7,225.50
  4. Step 4: Simplify right side
    13,195.02x = 131,564,432.93
  5. Step 5: Solve for x
    x = 131,564,432.93/13,195.02
  6. Step 6: Final answer
    x = 9,970.76

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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.