Home / 18,700.02-28,074.52-13,155.98

Finding the Fourth Proportional to 18,700.02, 28,074.52 and 13,155.98

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Solution

The fourth proportional to 18,700.02, 28,074.52 and 13,155.98 is: 19,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.02 : 28,074.52 = 13,155.98 : x
  2. Step 2: Convert to fraction form
    18,700.02/28,074.52 = 13,155.98/x
  3. Step 3: Cross multiply
    18,700.02x = 28,074.52 × 13,155.98
  4. Step 4: Simplify right side
    18,700.02x = 369,347,823.63
  5. Step 5: Solve for x
    x = 369,347,823.63/18,700.02
  6. Step 6: Final answer
    x = 19,751.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.