Home / 16,491.12-22,756.60-9,776.40

Finding the Fourth Proportional to 16,491.12, 22,756.60 and 9,776.40

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Solution

The fourth proportional to 16,491.12, 22,756.60 and 9,776.40 is: 13,490.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.12 : 22,756.60 = 9,776.40 : x
  2. Step 2: Convert to fraction form
    16,491.12/22,756.60 = 9,776.40/x
  3. Step 3: Cross multiply
    16,491.12x = 22,756.60 × 9,776.40
  4. Step 4: Simplify right side
    16,491.12x = 222,477,624.24
  5. Step 5: Solve for x
    x = 222,477,624.24/16,491.12
  6. Step 6: Final answer
    x = 13,490.75

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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.