Home / 13,645.02-18,832.59-9,666.30

Finding the Fourth Proportional to 13,645.02, 18,832.59 and 9,666.30

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Solution

The fourth proportional to 13,645.02, 18,832.59 and 9,666.30 is: 13,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.02 : 18,832.59 = 9,666.30 : x
  2. Step 2: Convert to fraction form
    13,645.02/18,832.59 = 9,666.30/x
  3. Step 3: Cross multiply
    13,645.02x = 18,832.59 × 9,666.30
  4. Step 4: Simplify right side
    13,645.02x = 182,041,464.72
  5. Step 5: Solve for x
    x = 182,041,464.72/13,645.02
  6. Step 6: Final answer
    x = 13,341.24

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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.