Home / 9,001.12-13,501.66-3,159.40

Finding the Fourth Proportional to 9,001.12, 13,501.66 and 3,159.40

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Solution

The fourth proportional to 9,001.12, 13,501.66 and 3,159.40 is: 4,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.12 : 13,501.66 = 3,159.40 : x
  2. Step 2: Convert to fraction form
    9,001.12/13,501.66 = 3,159.40/x
  3. Step 3: Cross multiply
    9,001.12x = 13,501.66 × 3,159.40
  4. Step 4: Simplify right side
    9,001.12x = 42,657,144.60
  5. Step 5: Solve for x
    x = 42,657,144.60/9,001.12
  6. Step 6: Final answer
    x = 4,739.09

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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.