Home / 12,358.98-18,538.65-4,038.93

Finding the Fourth Proportional to 12,358.98, 18,538.65 and 4,038.93

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Solution

The fourth proportional to 12,358.98, 18,538.65 and 4,038.93 is: 6,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.98 : 18,538.65 = 4,038.93 : x
  2. Step 2: Convert to fraction form
    12,358.98/18,538.65 = 4,038.93/x
  3. Step 3: Cross multiply
    12,358.98x = 18,538.65 × 4,038.93
  4. Step 4: Simplify right side
    12,358.98x = 74,876,309.64
  5. Step 5: Solve for x
    x = 74,876,309.64/12,358.98
  6. Step 6: Final answer
    x = 6,058.45

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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.