Home / 18,888.02-26,065.78-10,390.52

Finding the Fourth Proportional to 18,888.02, 26,065.78 and 10,390.52

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Solution

The fourth proportional to 18,888.02, 26,065.78 and 10,390.52 is: 14,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.02 : 26,065.78 = 10,390.52 : x
  2. Step 2: Convert to fraction form
    18,888.02/26,065.78 = 10,390.52/x
  3. Step 3: Cross multiply
    18,888.02x = 26,065.78 × 10,390.52
  4. Step 4: Simplify right side
    18,888.02x = 270,837,008.41
  5. Step 5: Solve for x
    x = 270,837,008.41/18,888.02
  6. Step 6: Final answer
    x = 14,339.09

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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.