Home / 13,698,538.75-18,903,311.71-7,503,612.95

Finding the Fourth Proportional to 13,698,538.75, 18,903,311.71 and 7,503,612.95

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Solution

The fourth proportional to 13,698,538.75, 18,903,311.71 and 7,503,612.95 is: 10,354,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,538.75 : 18,903,311.71 = 7,503,612.95 : x
  2. Step 2: Convert to fraction form
    13,698,538.75/18,903,311.71 = 7,503,612.95/x
  3. Step 3: Cross multiply
    13,698,538.75x = 18,903,311.71 × 7,503,612.95
  4. Step 4: Simplify right side
    13,698,538.75x = 141,843,134,545,042.66
  5. Step 5: Solve for x
    x = 141,843,134,545,042.66/13,698,538.75
  6. Step 6: Final answer
    x = 10,354,617.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.