Home / 15,612.77-21,539.57-9,946.50

Finding the Fourth Proportional to 15,612.77, 21,539.57 and 9,946.50

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Solution

The fourth proportional to 15,612.77, 21,539.57 and 9,946.50 is: 13,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.77 : 21,539.57 = 9,946.50 : x
  2. Step 2: Convert to fraction form
    15,612.77/21,539.57 = 9,946.50/x
  3. Step 3: Cross multiply
    15,612.77x = 21,539.57 × 9,946.50
  4. Step 4: Simplify right side
    15,612.77x = 214,243,283.27
  5. Step 5: Solve for x
    x = 214,243,283.27/15,612.77
  6. Step 6: Final answer
    x = 13,722.32

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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.