Home / 14,279.02-21,395.12-10,111.55

Finding the Fourth Proportional to 14,279.02, 21,395.12 and 10,111.55

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Solution

The fourth proportional to 14,279.02, 21,395.12 and 10,111.55 is: 15,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.02 : 21,395.12 = 10,111.55 : x
  2. Step 2: Convert to fraction form
    14,279.02/21,395.12 = 10,111.55/x
  3. Step 3: Cross multiply
    14,279.02x = 21,395.12 × 10,111.55
  4. Step 4: Simplify right side
    14,279.02x = 216,337,743.94
  5. Step 5: Solve for x
    x = 216,337,743.94/14,279.02
  6. Step 6: Final answer
    x = 15,150.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.