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Finding the Fourth Proportional to 14,275.58, 19,700.08 and 7,987.95

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Solution

The fourth proportional to 14,275.58, 19,700.08 and 7,987.95 is: 11,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.58 : 19,700.08 = 7,987.95 : x
  2. Step 2: Convert to fraction form
    14,275.58/19,700.08 = 7,987.95/x
  3. Step 3: Cross multiply
    14,275.58x = 19,700.08 × 7,987.95
  4. Step 4: Simplify right side
    14,275.58x = 157,363,234.07
  5. Step 5: Solve for x
    x = 157,363,234.07/14,275.58
  6. Step 6: Final answer
    x = 11,023.25

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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.