Home / 15,055.02-20,776.22-8,340.46

Finding the Fourth Proportional to 15,055.02, 20,776.22 and 8,340.46

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Solution

The fourth proportional to 15,055.02, 20,776.22 and 8,340.46 is: 11,510.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.02 : 20,776.22 = 8,340.46 : x
  2. Step 2: Convert to fraction form
    15,055.02/20,776.22 = 8,340.46/x
  3. Step 3: Cross multiply
    15,055.02x = 20,776.22 × 8,340.46
  4. Step 4: Simplify right side
    15,055.02x = 173,283,231.86
  5. Step 5: Solve for x
    x = 173,283,231.86/15,055.02
  6. Step 6: Final answer
    x = 11,510.00

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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.