Home / 11,007.40-16,486.80-9,776.20

Finding the Fourth Proportional to 11,007.40, 16,486.80 and 9,776.20

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Solution

The fourth proportional to 11,007.40, 16,486.80 and 9,776.20 is: 14,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.40 : 16,486.80 = 9,776.20 : x
  2. Step 2: Convert to fraction form
    11,007.40/16,486.80 = 9,776.20/x
  3. Step 3: Cross multiply
    11,007.40x = 16,486.80 × 9,776.20
  4. Step 4: Simplify right side
    11,007.40x = 161,178,254.16
  5. Step 5: Solve for x
    x = 161,178,254.16/11,007.40
  6. Step 6: Final answer
    x = 14,642.72

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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.