Home / 10,117.36-15,182.50-4,920.40

Finding the Fourth Proportional to 10,117.36, 15,182.50 and 4,920.40

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Solution

The fourth proportional to 10,117.36, 15,182.50 and 4,920.40 is: 7,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.36 : 15,182.50 = 4,920.40 : x
  2. Step 2: Convert to fraction form
    10,117.36/15,182.50 = 4,920.40/x
  3. Step 3: Cross multiply
    10,117.36x = 15,182.50 × 4,920.40
  4. Step 4: Simplify right side
    10,117.36x = 74,703,973
  5. Step 5: Solve for x
    x = 74,703,973/10,117.36
  6. Step 6: Final answer
    x = 7,383.74

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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.