Home / 15,459.60-23,147.85-12,719.34

Finding the Fourth Proportional to 15,459.60, 23,147.85 and 12,719.34

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Solution

The fourth proportional to 15,459.60, 23,147.85 and 12,719.34 is: 19,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.60 : 23,147.85 = 12,719.34 : x
  2. Step 2: Convert to fraction form
    15,459.60/23,147.85 = 12,719.34/x
  3. Step 3: Cross multiply
    15,459.60x = 23,147.85 × 12,719.34
  4. Step 4: Simplify right side
    15,459.60x = 294,425,374.42
  5. Step 5: Solve for x
    x = 294,425,374.42/15,459.60
  6. Step 6: Final answer
    x = 19,044.82

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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.