Home / 12,988.02-19,479.44-5,966.12

Finding the Fourth Proportional to 12,988.02, 19,479.44 and 5,966.12

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Solution

The fourth proportional to 12,988.02, 19,479.44 and 5,966.12 is: 8,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.02 : 19,479.44 = 5,966.12 : x
  2. Step 2: Convert to fraction form
    12,988.02/19,479.44 = 5,966.12/x
  3. Step 3: Cross multiply
    12,988.02x = 19,479.44 × 5,966.12
  4. Step 4: Simplify right side
    12,988.02x = 116,216,676.57
  5. Step 5: Solve for x
    x = 116,216,676.57/12,988.02
  6. Step 6: Final answer
    x = 8,947.99

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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.