Home / 15,012.10-20,717.02-8,298.47

Finding the Fourth Proportional to 15,012.10, 20,717.02 and 8,298.47

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Solution

The fourth proportional to 15,012.10, 20,717.02 and 8,298.47 is: 11,452.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.10 : 20,717.02 = 8,298.47 : x
  2. Step 2: Convert to fraction form
    15,012.10/20,717.02 = 8,298.47/x
  3. Step 3: Cross multiply
    15,012.10x = 20,717.02 × 8,298.47
  4. Step 4: Simplify right side
    15,012.10x = 171,919,631.13
  5. Step 5: Solve for x
    x = 171,919,631.13/15,012.10
  6. Step 6: Final answer
    x = 11,452.07

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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.