Home / 15,188-22,785.36-6,430.40

Finding the Fourth Proportional to 15,188, 22,785.36 and 6,430.40

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Solution

The fourth proportional to 15,188, 22,785.36 and 6,430.40 is: 9,647.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188 : 22,785.36 = 6,430.40 : x
  2. Step 2: Convert to fraction form
    15,188/22,785.36 = 6,430.40/x
  3. Step 3: Cross multiply
    15,188x = 22,785.36 × 6,430.40
  4. Step 4: Simplify right side
    15,188x = 146,518,978.94
  5. Step 5: Solve for x
    x = 146,518,978.94/15,188
  6. Step 6: Final answer
    x = 9,647.02

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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.