Home / 14,582.64-20,123.46-8,915.40

Finding the Fourth Proportional to 14,582.64, 20,123.46 and 8,915.40

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Solution

The fourth proportional to 14,582.64, 20,123.46 and 8,915.40 is: 12,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,582.64 : 20,123.46 = 8,915.40 : x
  2. Step 2: Convert to fraction form
    14,582.64/20,123.46 = 8,915.40/x
  3. Step 3: Cross multiply
    14,582.64x = 20,123.46 × 8,915.40
  4. Step 4: Simplify right side
    14,582.64x = 179,408,695.28
  5. Step 5: Solve for x
    x = 179,408,695.28/14,582.64
  6. Step 6: Final answer
    x = 12,302.90

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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.