Home / 12,637.02-18,955.60-5,615.38

Finding the Fourth Proportional to 12,637.02, 18,955.60 and 5,615.38

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Solution

The fourth proportional to 12,637.02, 18,955.60 and 5,615.38 is: 8,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.02 : 18,955.60 = 5,615.38 : x
  2. Step 2: Convert to fraction form
    12,637.02/18,955.60 = 5,615.38/x
  3. Step 3: Cross multiply
    12,637.02x = 18,955.60 × 5,615.38
  4. Step 4: Simplify right side
    12,637.02x = 106,442,774.27
  5. Step 5: Solve for x
    x = 106,442,774.27/12,637.02
  6. Step 6: Final answer
    x = 8,423.09

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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.