Home / 10,972.02-16,421.58-8,770.44

Finding the Fourth Proportional to 10,972.02, 16,421.58 and 8,770.44

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Solution

The fourth proportional to 10,972.02, 16,421.58 and 8,770.44 is: 13,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.02 : 16,421.58 = 8,770.44 : x
  2. Step 2: Convert to fraction form
    10,972.02/16,421.58 = 8,770.44/x
  3. Step 3: Cross multiply
    10,972.02x = 16,421.58 × 8,770.44
  4. Step 4: Simplify right side
    10,972.02x = 144,024,482.10
  5. Step 5: Solve for x
    x = 144,024,482.10/10,972.02
  6. Step 6: Final answer
    x = 13,126.52

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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.