Home / 12,438.63-18,566.93-10,962.45

Finding the Fourth Proportional to 12,438.63, 18,566.93 and 10,962.45

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Solution

The fourth proportional to 12,438.63, 18,566.93 and 10,962.45 is: 16,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.63 : 18,566.93 = 10,962.45 : x
  2. Step 2: Convert to fraction form
    12,438.63/18,566.93 = 10,962.45/x
  3. Step 3: Cross multiply
    12,438.63x = 18,566.93 × 10,962.45
  4. Step 4: Simplify right side
    12,438.63x = 203,539,041.78
  5. Step 5: Solve for x
    x = 203,539,041.78/12,438.63
  6. Step 6: Final answer
    x = 16,363.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.