Home / 13,437.10-20,148.45-5,637.10

Finding the Fourth Proportional to 13,437.10, 20,148.45 and 5,637.10

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Solution

The fourth proportional to 13,437.10, 20,148.45 and 5,637.10 is: 8,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.10 : 20,148.45 = 5,637.10 : x
  2. Step 2: Convert to fraction form
    13,437.10/20,148.45 = 5,637.10/x
  3. Step 3: Cross multiply
    13,437.10x = 20,148.45 × 5,637.10
  4. Step 4: Simplify right side
    13,437.10x = 113,578,827.50
  5. Step 5: Solve for x
    x = 113,578,827.50/13,437.10
  6. Step 6: Final answer
    x = 8,452.63

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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.