Home / 15,764.08-21,756.40-9,051.82

Finding the Fourth Proportional to 15,764.08, 21,756.40 and 9,051.82

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Solution

The fourth proportional to 15,764.08, 21,756.40 and 9,051.82 is: 12,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,764.08 : 21,756.40 = 9,051.82 : x
  2. Step 2: Convert to fraction form
    15,764.08/21,756.40 = 9,051.82/x
  3. Step 3: Cross multiply
    15,764.08x = 21,756.40 × 9,051.82
  4. Step 4: Simplify right side
    15,764.08x = 196,935,016.65
  5. Step 5: Solve for x
    x = 196,935,016.65/15,764.08
  6. Step 6: Final answer
    x = 12,492.64

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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.