Home / 13,065.94-18,038.47-8,602.66

Finding the Fourth Proportional to 13,065.94, 18,038.47 and 8,602.66

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Solution

The fourth proportional to 13,065.94, 18,038.47 and 8,602.66 is: 11,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.94 : 18,038.47 = 8,602.66 : x
  2. Step 2: Convert to fraction form
    13,065.94/18,038.47 = 8,602.66/x
  3. Step 3: Cross multiply
    13,065.94x = 18,038.47 × 8,602.66
  4. Step 4: Simplify right side
    13,065.94x = 155,178,916.43
  5. Step 5: Solve for x
    x = 155,178,916.43/13,065.94
  6. Step 6: Final answer
    x = 11,876.60

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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.