Home / 9,132.36-12,602.18-5,355

Finding the Fourth Proportional to 9,132.36, 12,602.18 and 5,355

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Solution

The fourth proportional to 9,132.36, 12,602.18 and 5,355 is: 7,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,132.36 : 12,602.18 = 5,355 : x
  2. Step 2: Convert to fraction form
    9,132.36/12,602.18 = 5,355/x
  3. Step 3: Cross multiply
    9,132.36x = 12,602.18 × 5,355
  4. Step 4: Simplify right side
    9,132.36x = 67,484,673.90
  5. Step 5: Solve for x
    x = 67,484,673.90/9,132.36
  6. Step 6: Final answer
    x = 7,389.62

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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.