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Finding the Fourth Proportional to 9,719.90, 14,597.45 and 8,510.30

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Solution

The fourth proportional to 9,719.90, 14,597.45 and 8,510.30 is: 12,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.90 : 14,597.45 = 8,510.30 : x
  2. Step 2: Convert to fraction form
    9,719.90/14,597.45 = 8,510.30/x
  3. Step 3: Cross multiply
    9,719.90x = 14,597.45 × 8,510.30
  4. Step 4: Simplify right side
    9,719.90x = 124,228,678.74
  5. Step 5: Solve for x
    x = 124,228,678.74/9,719.90
  6. Step 6: Final answer
    x = 12,780.86

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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.