Home / 12,915.40-19,371.42-4,595.08

Finding the Fourth Proportional to 12,915.40, 19,371.42 and 4,595.08

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Solution

The fourth proportional to 12,915.40, 19,371.42 and 4,595.08 is: 6,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.40 : 19,371.42 = 4,595.08 : x
  2. Step 2: Convert to fraction form
    12,915.40/19,371.42 = 4,595.08/x
  3. Step 3: Cross multiply
    12,915.40x = 19,371.42 × 4,595.08
  4. Step 4: Simplify right side
    12,915.40x = 89,013,224.61
  5. Step 5: Solve for x
    x = 89,013,224.61/12,915.40
  6. Step 6: Final answer
    x = 6,892.02

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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.