Home / 12,689.61-19,035.69-4,368.53

Finding the Fourth Proportional to 12,689.61, 19,035.69 and 4,368.53

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Solution

The fourth proportional to 12,689.61, 19,035.69 and 4,368.53 is: 6,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.61 : 19,035.69 = 4,368.53 : x
  2. Step 2: Convert to fraction form
    12,689.61/19,035.69 = 4,368.53/x
  3. Step 3: Cross multiply
    12,689.61x = 19,035.69 × 4,368.53
  4. Step 4: Simplify right side
    12,689.61x = 83,157,887.66
  5. Step 5: Solve for x
    x = 83,157,887.66/12,689.61
  6. Step 6: Final answer
    x = 6,553.23

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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.