Home / 9,400.20-12,973.50-5,421.36

Finding the Fourth Proportional to 9,400.20, 12,973.50 and 5,421.36

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Solution

The fourth proportional to 9,400.20, 12,973.50 and 5,421.36 is: 7,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.20 : 12,973.50 = 5,421.36 : x
  2. Step 2: Convert to fraction form
    9,400.20/12,973.50 = 5,421.36/x
  3. Step 3: Cross multiply
    9,400.20x = 12,973.50 × 5,421.36
  4. Step 4: Simplify right side
    9,400.20x = 70,334,013.96
  5. Step 5: Solve for x
    x = 70,334,013.96/9,400.20
  6. Step 6: Final answer
    x = 7,482.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.