Home / 19,719.02-27,211.47-10,766.90

Finding the Fourth Proportional to 19,719.02, 27,211.47 and 10,766.90

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Solution

The fourth proportional to 19,719.02, 27,211.47 and 10,766.90 is: 14,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.02 : 27,211.47 = 10,766.90 : x
  2. Step 2: Convert to fraction form
    19,719.02/27,211.47 = 10,766.90/x
  3. Step 3: Cross multiply
    19,719.02x = 27,211.47 × 10,766.90
  4. Step 4: Simplify right side
    19,719.02x = 292,983,176.34
  5. Step 5: Solve for x
    x = 292,983,176.34/19,719.02
  6. Step 6: Final answer
    x = 14,857.90

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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.