Home / 12,509.02-18,837.38-10,885.11

Finding the Fourth Proportional to 12,509.02, 18,837.38 and 10,885.11

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Solution

The fourth proportional to 12,509.02, 18,837.38 and 10,885.11 is: 16,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.02 : 18,837.38 = 10,885.11 : x
  2. Step 2: Convert to fraction form
    12,509.02/18,837.38 = 10,885.11/x
  3. Step 3: Cross multiply
    12,509.02x = 18,837.38 × 10,885.11
  4. Step 4: Simplify right side
    12,509.02x = 205,046,953.41
  5. Step 5: Solve for x
    x = 205,046,953.41/12,509.02
  6. Step 6: Final answer
    x = 16,391.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.