Home / 10,064.40-15,106.20-8,605.20

Finding the Fourth Proportional to 10,064.40, 15,106.20 and 8,605.20

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Solution

The fourth proportional to 10,064.40, 15,106.20 and 8,605.20 is: 12,916.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,064.40 : 15,106.20 = 8,605.20 : x
  2. Step 2: Convert to fraction form
    10,064.40/15,106.20 = 8,605.20/x
  3. Step 3: Cross multiply
    10,064.40x = 15,106.20 × 8,605.20
  4. Step 4: Simplify right side
    10,064.40x = 129,991,872.24
  5. Step 5: Solve for x
    x = 129,991,872.24/10,064.40
  6. Step 6: Final answer
    x = 12,916.01

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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.