Home / 13,385.02-18,471.28-7,416.69

Finding the Fourth Proportional to 13,385.02, 18,471.28 and 7,416.69

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Solution

The fourth proportional to 13,385.02, 18,471.28 and 7,416.69 is: 10,235.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.02 : 18,471.28 = 7,416.69 : x
  2. Step 2: Convert to fraction form
    13,385.02/18,471.28 = 7,416.69/x
  3. Step 3: Cross multiply
    13,385.02x = 18,471.28 × 7,416.69
  4. Step 4: Simplify right side
    13,385.02x = 136,995,757.66
  5. Step 5: Solve for x
    x = 136,995,757.66/13,385.02
  6. Step 6: Final answer
    x = 10,235.01

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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.