Home / 10,371.50-14,312.67-6,645.74

Finding the Fourth Proportional to 10,371.50, 14,312.67 and 6,645.74

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Solution

The fourth proportional to 10,371.50, 14,312.67 and 6,645.74 is: 9,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.50 : 14,312.67 = 6,645.74 : x
  2. Step 2: Convert to fraction form
    10,371.50/14,312.67 = 6,645.74/x
  3. Step 3: Cross multiply
    10,371.50x = 14,312.67 × 6,645.74
  4. Step 4: Simplify right side
    10,371.50x = 95,118,283.53
  5. Step 5: Solve for x
    x = 95,118,283.53/10,371.50
  6. Step 6: Final answer
    x = 9,171.12

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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.