Home / 13,172.93-18,182.02-9,140.04

Finding the Fourth Proportional to 13,172.93, 18,182.02 and 9,140.04

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Solution

The fourth proportional to 13,172.93, 18,182.02 and 9,140.04 is: 12,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.93 : 18,182.02 = 9,140.04 : x
  2. Step 2: Convert to fraction form
    13,172.93/18,182.02 = 9,140.04/x
  3. Step 3: Cross multiply
    13,172.93x = 18,182.02 × 9,140.04
  4. Step 4: Simplify right side
    13,172.93x = 166,184,384.37
  5. Step 5: Solve for x
    x = 166,184,384.37/13,172.93
  6. Step 6: Final answer
    x = 12,615.60

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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.