Home / 15,385.26-21,223.14-10,340.58

Finding the Fourth Proportional to 15,385.26, 21,223.14 and 10,340.58

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Solution

The fourth proportional to 15,385.26, 21,223.14 and 10,340.58 is: 14,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,385.26 : 21,223.14 = 10,340.58 : x
  2. Step 2: Convert to fraction form
    15,385.26/21,223.14 = 10,340.58/x
  3. Step 3: Cross multiply
    15,385.26x = 21,223.14 × 10,340.58
  4. Step 4: Simplify right side
    15,385.26x = 219,459,577.02
  5. Step 5: Solve for x
    x = 219,459,577.02/15,385.26
  6. Step 6: Final answer
    x = 14,264.27

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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.