Home / 15,771.02-21,763.27-9,051.92

Finding the Fourth Proportional to 15,771.02, 21,763.27 and 9,051.92

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Solution

The fourth proportional to 15,771.02, 21,763.27 and 9,051.92 is: 12,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.02 : 21,763.27 = 9,051.92 : x
  2. Step 2: Convert to fraction form
    15,771.02/21,763.27 = 9,051.92/x
  3. Step 3: Cross multiply
    15,771.02x = 21,763.27 × 9,051.92
  4. Step 4: Simplify right side
    15,771.02x = 196,999,281.48
  5. Step 5: Solve for x
    x = 196,999,281.48/15,771.02
  6. Step 6: Final answer
    x = 12,491.22

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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.