Home / 10,159.02-14,028.10-6,388.50

Finding the Fourth Proportional to 10,159.02, 14,028.10 and 6,388.50

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Solution

The fourth proportional to 10,159.02, 14,028.10 and 6,388.50 is: 8,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.02 : 14,028.10 = 6,388.50 : x
  2. Step 2: Convert to fraction form
    10,159.02/14,028.10 = 6,388.50/x
  3. Step 3: Cross multiply
    10,159.02x = 14,028.10 × 6,388.50
  4. Step 4: Simplify right side
    10,159.02x = 89,618,446.71
  5. Step 5: Solve for x
    x = 89,618,446.71/10,159.02
  6. Step 6: Final answer
    x = 8,821.56

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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.