Home / 15,852.10-21,878.60-9,136.52

Finding the Fourth Proportional to 15,852.10, 21,878.60 and 9,136.52

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Solution

The fourth proportional to 15,852.10, 21,878.60 and 9,136.52 is: 12,609.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852.10 : 21,878.60 = 9,136.52 : x
  2. Step 2: Convert to fraction form
    15,852.10/21,878.60 = 9,136.52/x
  3. Step 3: Cross multiply
    15,852.10x = 21,878.60 × 9,136.52
  4. Step 4: Simplify right side
    15,852.10x = 199,894,266.47
  5. Step 5: Solve for x
    x = 199,894,266.47/15,852.10
  6. Step 6: Final answer
    x = 12,609.95

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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.