Home / 16,158.10-22,295.10-9,783.40

Finding the Fourth Proportional to 16,158.10, 22,295.10 and 9,783.40

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Solution

The fourth proportional to 16,158.10, 22,295.10 and 9,783.40 is: 13,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,158.10 : 22,295.10 = 9,783.40 : x
  2. Step 2: Convert to fraction form
    16,158.10/22,295.10 = 9,783.40/x
  3. Step 3: Cross multiply
    16,158.10x = 22,295.10 × 9,783.40
  4. Step 4: Simplify right side
    16,158.10x = 218,121,881.34
  5. Step 5: Solve for x
    x = 218,121,881.34/16,158.10
  6. Step 6: Final answer
    x = 13,499.23

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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.