Home / 13,053.30-19,578.02-4,288.30

Finding the Fourth Proportional to 13,053.30, 19,578.02 and 4,288.30

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Solution

The fourth proportional to 13,053.30, 19,578.02 and 4,288.30 is: 6,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.30 : 19,578.02 = 4,288.30 : x
  2. Step 2: Convert to fraction form
    13,053.30/19,578.02 = 4,288.30/x
  3. Step 3: Cross multiply
    13,053.30x = 19,578.02 × 4,288.30
  4. Step 4: Simplify right side
    13,053.30x = 83,956,423.17
  5. Step 5: Solve for x
    x = 83,956,423.17/13,053.30
  6. Step 6: Final answer
    x = 6,431.82

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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.