Home / 18,271.56-25,212.72-10,312.32

Finding the Fourth Proportional to 18,271.56, 25,212.72 and 10,312.32

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Solution

The fourth proportional to 18,271.56, 25,212.72 and 10,312.32 is: 14,229.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.56 : 25,212.72 = 10,312.32 : x
  2. Step 2: Convert to fraction form
    18,271.56/25,212.72 = 10,312.32/x
  3. Step 3: Cross multiply
    18,271.56x = 25,212.72 × 10,312.32
  4. Step 4: Simplify right side
    18,271.56x = 260,001,636.71
  5. Step 5: Solve for x
    x = 260,001,636.71/18,271.56
  6. Step 6: Final answer
    x = 14,229.85

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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.