Home / 15,271.72-23,011.63-12,559.16

Finding the Fourth Proportional to 15,271.72, 23,011.63 and 12,559.16

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Solution

The fourth proportional to 15,271.72, 23,011.63 and 12,559.16 is: 18,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.72 : 23,011.63 = 12,559.16 : x
  2. Step 2: Convert to fraction form
    15,271.72/23,011.63 = 12,559.16/x
  3. Step 3: Cross multiply
    15,271.72x = 23,011.63 × 12,559.16
  4. Step 4: Simplify right side
    15,271.72x = 289,006,743.03
  5. Step 5: Solve for x
    x = 289,006,743.03/15,271.72
  6. Step 6: Final answer
    x = 18,924.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.