Home / 12,915.49-19,373.13-8,552.47

Finding the Fourth Proportional to 12,915.49, 19,373.13 and 8,552.47

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Solution

The fourth proportional to 12,915.49, 19,373.13 and 8,552.47 is: 12,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.49 : 19,373.13 = 8,552.47 : x
  2. Step 2: Convert to fraction form
    12,915.49/19,373.13 = 8,552.47/x
  3. Step 3: Cross multiply
    12,915.49x = 19,373.13 × 8,552.47
  4. Step 4: Simplify right side
    12,915.49x = 165,688,113.13
  5. Step 5: Solve for x
    x = 165,688,113.13/12,915.49
  6. Step 6: Final answer
    x = 12,828.64

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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.