Home / 13,275.27-18,313.02-9,287.64

Finding the Fourth Proportional to 13,275.27, 18,313.02 and 9,287.64

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Solution

The fourth proportional to 13,275.27, 18,313.02 and 9,287.64 is: 12,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.27 : 18,313.02 = 9,287.64 : x
  2. Step 2: Convert to fraction form
    13,275.27/18,313.02 = 9,287.64/x
  3. Step 3: Cross multiply
    13,275.27x = 18,313.02 × 9,287.64
  4. Step 4: Simplify right side
    13,275.27x = 170,084,737.07
  5. Step 5: Solve for x
    x = 170,084,737.07/13,275.27
  6. Step 6: Final answer
    x = 12,812.15

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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.