Home / 19,430.64-29,139.75-8,334.34

Finding the Fourth Proportional to 19,430.64, 29,139.75 and 8,334.34

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Solution

The fourth proportional to 19,430.64, 29,139.75 and 8,334.34 is: 12,498.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.64 : 29,139.75 = 8,334.34 : x
  2. Step 2: Convert to fraction form
    19,430.64/29,139.75 = 8,334.34/x
  3. Step 3: Cross multiply
    19,430.64x = 29,139.75 × 8,334.34
  4. Step 4: Simplify right side
    19,430.64x = 242,860,511.17
  5. Step 5: Solve for x
    x = 242,860,511.17/19,430.64
  6. Step 6: Final answer
    x = 12,498.84

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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.