Home / 10,215.23-14,102.40-6,875.60

Finding the Fourth Proportional to 10,215.23, 14,102.40 and 6,875.60

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Solution

The fourth proportional to 10,215.23, 14,102.40 and 6,875.60 is: 9,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.23 : 14,102.40 = 6,875.60 : x
  2. Step 2: Convert to fraction form
    10,215.23/14,102.40 = 6,875.60/x
  3. Step 3: Cross multiply
    10,215.23x = 14,102.40 × 6,875.60
  4. Step 4: Simplify right side
    10,215.23x = 96,962,461.44
  5. Step 5: Solve for x
    x = 96,962,461.44/10,215.23
  6. Step 6: Final answer
    x = 9,491.95

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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.