Home / 14,127.12-19,495.56-7,840.08

Finding the Fourth Proportional to 14,127.12, 19,495.56 and 7,840.08

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Solution

The fourth proportional to 14,127.12, 19,495.56 and 7,840.08 is: 10,819.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.12 : 19,495.56 = 7,840.08 : x
  2. Step 2: Convert to fraction form
    14,127.12/19,495.56 = 7,840.08/x
  3. Step 3: Cross multiply
    14,127.12x = 19,495.56 × 7,840.08
  4. Step 4: Simplify right side
    14,127.12x = 152,846,750.04
  5. Step 5: Solve for x
    x = 152,846,750.04/14,127.12
  6. Step 6: Final answer
    x = 10,819.38

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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.