Home / 10,848.77-14,977.84-7,078.48

Finding the Fourth Proportional to 10,848.77, 14,977.84 and 7,078.48

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Solution

The fourth proportional to 10,848.77, 14,977.84 and 7,078.48 is: 9,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,848.77 : 14,977.84 = 7,078.48 : x
  2. Step 2: Convert to fraction form
    10,848.77/14,977.84 = 7,078.48/x
  3. Step 3: Cross multiply
    10,848.77x = 14,977.84 × 7,078.48
  4. Step 4: Simplify right side
    10,848.77x = 106,020,299.01
  5. Step 5: Solve for x
    x = 106,020,299.01/10,848.77
  6. Step 6: Final answer
    x = 9,772.56

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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.