Home / 12,359.03-18,538.70-4,038.98

Finding the Fourth Proportional to 12,359.03, 18,538.70 and 4,038.98

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Solution

The fourth proportional to 12,359.03, 18,538.70 and 4,038.98 is: 6,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.03 : 18,538.70 = 4,038.98 : x
  2. Step 2: Convert to fraction form
    12,359.03/18,538.70 = 4,038.98/x
  3. Step 3: Cross multiply
    12,359.03x = 18,538.70 × 4,038.98
  4. Step 4: Simplify right side
    12,359.03x = 74,877,325.64
  5. Step 5: Solve for x
    x = 74,877,325.64/12,359.03
  6. Step 6: Final answer
    x = 6,058.51

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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.