Home / 18,977.47-26,188.37-10,478.95

Finding the Fourth Proportional to 18,977.47, 26,188.37 and 10,478.95

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Solution

The fourth proportional to 18,977.47, 26,188.37 and 10,478.95 is: 14,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.47 : 26,188.37 = 10,478.95 : x
  2. Step 2: Convert to fraction form
    18,977.47/26,188.37 = 10,478.95/x
  3. Step 3: Cross multiply
    18,977.47x = 26,188.37 × 10,478.95
  4. Step 4: Simplify right side
    18,977.47x = 274,426,619.81
  5. Step 5: Solve for x
    x = 274,426,619.81/18,977.47
  6. Step 6: Final answer
    x = 14,460.65

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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.