Home / 13,642.02-18,834.93-10,512.18

Finding the Fourth Proportional to 13,642.02, 18,834.93 and 10,512.18

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Solution

The fourth proportional to 13,642.02, 18,834.93 and 10,512.18 is: 14,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642.02 : 18,834.93 = 10,512.18 : x
  2. Step 2: Convert to fraction form
    13,642.02/18,834.93 = 10,512.18/x
  3. Step 3: Cross multiply
    13,642.02x = 18,834.93 × 10,512.18
  4. Step 4: Simplify right side
    13,642.02x = 197,996,174.45
  5. Step 5: Solve for x
    x = 197,996,174.45/13,642.02
  6. Step 6: Final answer
    x = 14,513.70

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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.