Home / 14,310.45-21,459.15-9,307.89

Finding the Fourth Proportional to 14,310.45, 21,459.15 and 9,307.89

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Solution

The fourth proportional to 14,310.45, 21,459.15 and 9,307.89 is: 13,957.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.45 : 21,459.15 = 9,307.89 : x
  2. Step 2: Convert to fraction form
    14,310.45/21,459.15 = 9,307.89/x
  3. Step 3: Cross multiply
    14,310.45x = 21,459.15 × 9,307.89
  4. Step 4: Simplify right side
    14,310.45x = 199,739,407.69
  5. Step 5: Solve for x
    x = 199,739,407.69/14,310.45
  6. Step 6: Final answer
    x = 13,957.59

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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.