Home / 10,178.40-14,052.96-7,816.32

Finding the Fourth Proportional to 10,178.40, 14,052.96 and 7,816.32

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Solution

The fourth proportional to 10,178.40, 14,052.96 and 7,816.32 is: 10,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.40 : 14,052.96 = 7,816.32 : x
  2. Step 2: Convert to fraction form
    10,178.40/14,052.96 = 7,816.32/x
  3. Step 3: Cross multiply
    10,178.40x = 14,052.96 × 7,816.32
  4. Step 4: Simplify right side
    10,178.40x = 109,842,432.31
  5. Step 5: Solve for x
    x = 109,842,432.31/10,178.40
  6. Step 6: Final answer
    x = 10,791.72

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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.