Home / 13,533.79-20,306.75-8,602.15

Finding the Fourth Proportional to 13,533.79, 20,306.75 and 8,602.15

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Solution

The fourth proportional to 13,533.79, 20,306.75 and 8,602.15 is: 12,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.79 : 20,306.75 = 8,602.15 : x
  2. Step 2: Convert to fraction form
    13,533.79/20,306.75 = 8,602.15/x
  3. Step 3: Cross multiply
    13,533.79x = 20,306.75 × 8,602.15
  4. Step 4: Simplify right side
    13,533.79x = 174,681,709.51
  5. Step 5: Solve for x
    x = 174,681,709.51/13,533.79
  6. Step 6: Final answer
    x = 12,907.08

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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.