Home / 13,229.02-18,256.05-7,926.91

Finding the Fourth Proportional to 13,229.02, 18,256.05 and 7,926.91

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Solution

The fourth proportional to 13,229.02, 18,256.05 and 7,926.91 is: 10,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.02 : 18,256.05 = 7,926.91 : x
  2. Step 2: Convert to fraction form
    13,229.02/18,256.05 = 7,926.91/x
  3. Step 3: Cross multiply
    13,229.02x = 18,256.05 × 7,926.91
  4. Step 4: Simplify right side
    13,229.02x = 144,714,019.67
  5. Step 5: Solve for x
    x = 144,714,019.67/13,229.02
  6. Step 6: Final answer
    x = 10,939.13

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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.