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Finding the Fourth Proportional to 14,774.40, 22,258.80 and 12,830.40

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Solution

The fourth proportional to 14,774.40, 22,258.80 and 12,830.40 is: 19,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.40 : 22,258.80 = 12,830.40 : x
  2. Step 2: Convert to fraction form
    14,774.40/22,258.80 = 12,830.40/x
  3. Step 3: Cross multiply
    14,774.40x = 22,258.80 × 12,830.40
  4. Step 4: Simplify right side
    14,774.40x = 285,589,307.52
  5. Step 5: Solve for x
    x = 285,589,307.52/14,774.40
  6. Step 6: Final answer
    x = 19,330.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.