Home / 10,821.38-14,934.65-6,348.89

Finding the Fourth Proportional to 10,821.38, 14,934.65 and 6,348.89

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Solution

The fourth proportional to 10,821.38, 14,934.65 and 6,348.89 is: 8,762.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.38 : 14,934.65 = 6,348.89 : x
  2. Step 2: Convert to fraction form
    10,821.38/14,934.65 = 6,348.89/x
  3. Step 3: Cross multiply
    10,821.38x = 14,934.65 × 6,348.89
  4. Step 4: Simplify right side
    10,821.38x = 94,818,455.63
  5. Step 5: Solve for x
    x = 94,818,455.63/10,821.38
  6. Step 6: Final answer
    x = 8,762.14

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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.