Home / 12,437.85-18,647.51-7,506.39

Finding the Fourth Proportional to 12,437.85, 18,647.51 and 7,506.39

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Solution

The fourth proportional to 12,437.85, 18,647.51 and 7,506.39 is: 11,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.85 : 18,647.51 = 7,506.39 : x
  2. Step 2: Convert to fraction form
    12,437.85/18,647.51 = 7,506.39/x
  3. Step 3: Cross multiply
    12,437.85x = 18,647.51 × 7,506.39
  4. Step 4: Simplify right side
    12,437.85x = 139,975,445.06
  5. Step 5: Solve for x
    x = 139,975,445.06/12,437.85
  6. Step 6: Final answer
    x = 11,253.99

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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.