Home / 14,307.60-21,461.40-12,339.30

Finding the Fourth Proportional to 14,307.60, 21,461.40 and 12,339.30

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Solution

The fourth proportional to 14,307.60, 21,461.40 and 12,339.30 is: 18,508.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,307.60 : 21,461.40 = 12,339.30 : x
  2. Step 2: Convert to fraction form
    14,307.60/21,461.40 = 12,339.30/x
  3. Step 3: Cross multiply
    14,307.60x = 21,461.40 × 12,339.30
  4. Step 4: Simplify right side
    14,307.60x = 264,818,653.02
  5. Step 5: Solve for x
    x = 264,818,653.02/14,307.60
  6. Step 6: Final answer
    x = 18,508.95

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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.