Home / 10,977.78-16,444.80-9,337.80

Finding the Fourth Proportional to 10,977.78, 16,444.80 and 9,337.80

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Solution

The fourth proportional to 10,977.78, 16,444.80 and 9,337.80 is: 13,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.78 : 16,444.80 = 9,337.80 : x
  2. Step 2: Convert to fraction form
    10,977.78/16,444.80 = 9,337.80/x
  3. Step 3: Cross multiply
    10,977.78x = 16,444.80 × 9,337.80
  4. Step 4: Simplify right side
    10,977.78x = 153,558,253.44
  5. Step 5: Solve for x
    x = 153,558,253.44/10,977.78
  6. Step 6: Final answer
    x = 13,988.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.