Home / 10,423.84-14,385.36-5,708.20

Finding the Fourth Proportional to 10,423.84, 14,385.36 and 5,708.20

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Solution

The fourth proportional to 10,423.84, 14,385.36 and 5,708.20 is: 7,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.84 : 14,385.36 = 5,708.20 : x
  2. Step 2: Convert to fraction form
    10,423.84/14,385.36 = 5,708.20/x
  3. Step 3: Cross multiply
    10,423.84x = 14,385.36 × 5,708.20
  4. Step 4: Simplify right side
    10,423.84x = 82,114,511.95
  5. Step 5: Solve for x
    x = 82,114,511.95/10,423.84
  6. Step 6: Final answer
    x = 7,877.57

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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.