Home / 13,528.62-20,292.93-9,345.78

Finding the Fourth Proportional to 13,528.62, 20,292.93 and 9,345.78

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Solution

The fourth proportional to 13,528.62, 20,292.93 and 9,345.78 is: 14,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.62 : 20,292.93 = 9,345.78 : x
  2. Step 2: Convert to fraction form
    13,528.62/20,292.93 = 9,345.78/x
  3. Step 3: Cross multiply
    13,528.62x = 20,292.93 × 9,345.78
  4. Step 4: Simplify right side
    13,528.62x = 189,653,259.34
  5. Step 5: Solve for x
    x = 189,653,259.34/13,528.62
  6. Step 6: Final answer
    x = 14,018.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.