Home / 13,307.19-19,947.30-8,630.18

Finding the Fourth Proportional to 13,307.19, 19,947.30 and 8,630.18

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Solution

The fourth proportional to 13,307.19, 19,947.30 and 8,630.18 is: 12,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.19 : 19,947.30 = 8,630.18 : x
  2. Step 2: Convert to fraction form
    13,307.19/19,947.30 = 8,630.18/x
  3. Step 3: Cross multiply
    13,307.19x = 19,947.30 × 8,630.18
  4. Step 4: Simplify right side
    13,307.19x = 172,148,689.78
  5. Step 5: Solve for x
    x = 172,148,689.78/13,307.19
  6. Step 6: Final answer
    x = 12,936.52

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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.