Home / 12,717.40-19,088.36-6,148.20

Finding the Fourth Proportional to 12,717.40, 19,088.36 and 6,148.20

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Solution

The fourth proportional to 12,717.40, 19,088.36 and 6,148.20 is: 9,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.40 : 19,088.36 = 6,148.20 : x
  2. Step 2: Convert to fraction form
    12,717.40/19,088.36 = 6,148.20/x
  3. Step 3: Cross multiply
    12,717.40x = 19,088.36 × 6,148.20
  4. Step 4: Simplify right side
    12,717.40x = 117,359,054.95
  5. Step 5: Solve for x
    x = 117,359,054.95/12,717.40
  6. Step 6: Final answer
    x = 9,228.23

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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.