Home / 15,578.10-21,495.24-9,612.18

Finding the Fourth Proportional to 15,578.10, 21,495.24 and 9,612.18

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Solution

The fourth proportional to 15,578.10, 21,495.24 and 9,612.18 is: 13,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,578.10 : 21,495.24 = 9,612.18 : x
  2. Step 2: Convert to fraction form
    15,578.10/21,495.24 = 9,612.18/x
  3. Step 3: Cross multiply
    15,578.10x = 21,495.24 × 9,612.18
  4. Step 4: Simplify right side
    15,578.10x = 206,616,116.02
  5. Step 5: Solve for x
    x = 206,616,116.02/15,578.10
  6. Step 6: Final answer
    x = 13,263.24

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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.