Home / 12,145.02-16,760.84-7,430.20

Finding the Fourth Proportional to 12,145.02, 16,760.84 and 7,430.20

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Solution

The fourth proportional to 12,145.02, 16,760.84 and 7,430.20 is: 10,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.02 : 16,760.84 = 7,430.20 : x
  2. Step 2: Convert to fraction form
    12,145.02/16,760.84 = 7,430.20/x
  3. Step 3: Cross multiply
    12,145.02x = 16,760.84 × 7,430.20
  4. Step 4: Simplify right side
    12,145.02x = 124,536,393.37
  5. Step 5: Solve for x
    x = 124,536,393.37/12,145.02
  6. Step 6: Final answer
    x = 10,254.11

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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.