Home / 13,985.40-19,300.26-7,612.41

Finding the Fourth Proportional to 13,985.40, 19,300.26 and 7,612.41

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Solution

The fourth proportional to 13,985.40, 19,300.26 and 7,612.41 is: 10,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.40 : 19,300.26 = 7,612.41 : x
  2. Step 2: Convert to fraction form
    13,985.40/19,300.26 = 7,612.41/x
  3. Step 3: Cross multiply
    13,985.40x = 19,300.26 × 7,612.41
  4. Step 4: Simplify right side
    13,985.40x = 146,921,492.23
  5. Step 5: Solve for x
    x = 146,921,492.23/13,985.40
  6. Step 6: Final answer
    x = 10,505.35

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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.