Home / 9,637.80-14,432.40-7,159.20

Finding the Fourth Proportional to 9,637.80, 14,432.40 and 7,159.20

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Solution

The fourth proportional to 9,637.80, 14,432.40 and 7,159.20 is: 10,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,637.80 : 14,432.40 = 7,159.20 : x
  2. Step 2: Convert to fraction form
    9,637.80/14,432.40 = 7,159.20/x
  3. Step 3: Cross multiply
    9,637.80x = 14,432.40 × 7,159.20
  4. Step 4: Simplify right side
    9,637.80x = 103,324,438.08
  5. Step 5: Solve for x
    x = 103,324,438.08/9,637.80
  6. Step 6: Final answer
    x = 10,720.75

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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.