Home / 9,157.77-12,637.67-5,621.13

Finding the Fourth Proportional to 9,157.77, 12,637.67 and 5,621.13

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Solution

The fourth proportional to 9,157.77, 12,637.67 and 5,621.13 is: 7,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.77 : 12,637.67 = 5,621.13 : x
  2. Step 2: Convert to fraction form
    9,157.77/12,637.67 = 5,621.13/x
  3. Step 3: Cross multiply
    9,157.77x = 12,637.67 × 5,621.13
  4. Step 4: Simplify right side
    9,157.77x = 71,037,957.86
  5. Step 5: Solve for x
    x = 71,037,957.86/9,157.77
  6. Step 6: Final answer
    x = 7,757.12

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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.