Home / 18,718.68-25,831.44-10,335

Finding the Fourth Proportional to 18,718.68, 25,831.44 and 10,335

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Solution

The fourth proportional to 18,718.68, 25,831.44 and 10,335 is: 14,262.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.68 : 25,831.44 = 10,335 : x
  2. Step 2: Convert to fraction form
    18,718.68/25,831.44 = 10,335/x
  3. Step 3: Cross multiply
    18,718.68x = 25,831.44 × 10,335
  4. Step 4: Simplify right side
    18,718.68x = 266,967,932.40
  5. Step 5: Solve for x
    x = 266,967,932.40/18,718.68
  6. Step 6: Final answer
    x = 14,262.11

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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.