Home / 13,708.02-18,954.36-13,485.72

Finding the Fourth Proportional to 13,708.02, 18,954.36 and 13,485.72

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Solution

The fourth proportional to 13,708.02, 18,954.36 and 13,485.72 is: 18,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.02 : 18,954.36 = 13,485.72 : x
  2. Step 2: Convert to fraction form
    13,708.02/18,954.36 = 13,485.72/x
  3. Step 3: Cross multiply
    13,708.02x = 18,954.36 × 13,485.72
  4. Step 4: Simplify right side
    13,708.02x = 255,613,191.74
  5. Step 5: Solve for x
    x = 255,613,191.74/13,708.02
  6. Step 6: Final answer
    x = 18,646.98

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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.